The major alkene product that results when n,n-dimethylhexan-2-amine undergoes cope elimination is hexene or hex-1-ene.
The reaction in which an amine is oxidize to an intermediate called an N-oxide which , when heated , acts as base in an intramolecular elimination reaction. The oxidation of tertiary amine into N-oxide is called cope reaction.
This elimination gives the less substituted alkene along with more substituted alkene which is Zaitsev product.
Example: Cope elimination of n,n-dimethylhexan-2-amine form hexene.
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List 4 major types of inhibition modes and clearly indicate the effect on vmax and km for each mode?
The 4 major types of inhibition are Competitive Inhibition, Non-competitive Reversible Inhibition, Non-competitive Irreversible Inhibition, and Uncompetitive Inhibition.
Types of inhibition modes:1. Competitive Inhibition: Competing inhibitors are substances that resemble an enzyme's natural substrate so closely that they vie for the active site. In order to stop additional reactions, the inhibitor binds to the active site and stays there.
The inhibitor and substrate fight for the enzyme's active site because the enzyme may react with the inhibitor and release the products as it normally would with its substrate
2. Non-competitive Inhibition:
Reversible: There is no competition in this instance because the inhibitor and substrate are not related. The substrate and the inhibitor may mix at various places of the complexes of the enzymes [E-I], [E-S], and [E-I-S].And in the Michaelis equation, this kind of inhibition lowers V max but has no impact on Km.The rate at which the enzyme is fully saturated is given by V = V max [S] / Km + [S] (V max).
(Km): The substrate is the Michaelis constant, at which the reaction rate is halved, or at V maximum.
Irreversible: These kinds of inhibitors impact the chemical alteration of an amino acid residue in the enzyme that plays a function in catalysis when they join with the enzyme nearby or at the active site.Additionally, this kind of inhibition lowers Vmax but has no impact on Km.
3. Uncompetitive Inhibition: is the last type, where the inhibitor attaches to the [E-S] complex to create [E-S-I] even if it has no affinity for the enzyme.
However, this kind of inhibition lowers both Vmax and Km.
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Write the henderson-hasselbalch equation for a propanoic acid solution (ch3ch2co2h, pa=4. 874)
The Henderson-hasselbalch equation for a propanoic acid solution is expressed as [A-]/[HA] = 2.7.
What is Henderson Hasselbalch Equation ?It is expressed as:
pH = pKa + log([A-]/[HA].
where,
[A-] is molar concentration of conjugate base and
[HA] is molar concentration of weak acid.
Given,
pH = 5.30
Substitute the value in the Henderson Hasselbalch equation
5.30 = 4.874 + log[A-]/ [HA]
log[A-]/[HA] = 5.30 - 4.874
[A-]/[HA] = 10^ 0.426
[A-]/[HA] = 2.7
Thus from the conclusion we can say that The henderson-hasselbalch equation for a propanoic acid solution is expressed as [A-]/[HA] = 2.7.
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How much sludge in cubic feet per person per year accumulates in lagoon systems?
1 to 2 feet (cubed) per person per year can be accumulated in lagoon systems.
What is meant by lagoon systems?Lagoons are basin-like to collect, retain, and treat wastewater for a predefined amount of time. They are pond-like bodies of water.
Components of lagoon systems:A septic tank plus a small earthen pond with a constant 3-foot depth make up a lagoon system. A septic tank is a sizable, underground, watertight, corrosion-resistant container that collects untreated sewage from a home's plumbing drains.Dumping by septage hauling trucks is a common cause of slug loading into lagoons.Depth of sludge on the bottom of a lagoon that indicates that the lagoon should be cleaned is 1 foot.carbon dioxide gas is used and produced by algae, causing variations in a lagoon's pH.Biological growth provides enough oxygen to sufficiently aerate most lagoons for treatment processes to work.pH above 8.5 keeps lagoons from generating odors.To learn more about lagoon systems visit:
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This liquid carries red blood cells and white blood cells around the body. It also transports several different substances in solution, including -------- and------- .
Answer:
Water and Salts
Explanation:
Hope it helps u....
A solution of 5. 00 g of lauryl alcohol in 0. 100 kg of benzene freezes at 4. 1°c. what is the approximate molar mass of lauryl alcohol?
The approximate molar mass of lauryl alcohol is 183 g/mol.
As per Raoult's law:
[tex]T_b - T_s =KC m[/tex]
Tb = the freezing point of benzene (5.5oC), Ts = the freezing point of the solution, K = the cryoscopic constant (5.12 K*kg/mol for benzene), and Cm = the molality of the solution.
[tex]m_{l}[/tex]/M[tex]m_{s}[/tex] = [tex]C_{m}[/tex] where ml is the mass of lauryl alcohol and ms is the mass of the solvent.
[tex]T_b - T_s =KC m[/tex]=K[tex]m_{l}[/tex]/M[tex]m_{s}[/tex]
Therefore, M=[tex]\frac{Km_{l} }{(T_b - T_s)m_{s} }[/tex]=[tex]5.12*5/0.1(5.5-4.1)[/tex]=183 g/mol.
Lauryl alcoholAn organic substance called lauryl alcohol is created industrially from coconut or palm kernel oil. It is an alcoholic fat. The use of sodium lauryl sulfate and other sulfate esters of lauryl alcohol as surfactants is extremely common. In shampoos, sodium laureth sulfate, ammonium laureth sulfate, and sodium lauryl sulfate are all utilized. Lauryl alcohol has a floral scent and is flavorless and colorless. In addition to being a flavor-enhancing food additive, lauryl alcohol is also used to create medicines, lubricating lubricants, surfactants, and monolithic polymers. Lauryl alcohol is a kind of emollient used in cosmetics. Lauryl alcohol, a significant scent, and 1-bromododecane, an alkylating agent used to increase the lipophilicity of organic molecules, are both precursors to Lauryl alcohol.
A solution of 5. 00 g of lauryl alcohol in 0. 100 kg of benzene freezes at 4. 1°c. what is the approximate molar mass of lauryl alcohol?
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Part 1. determine the molar mass of a 0.314-gram sample of gas having a volume of 1.6 l at 287 k and 0.92 atm. show your work.
part 2. describe the temperature and pressure conditions at which the gas behaves like an ideal gas.
The molar mass of a substance can be calculated by dividing the mass of the substance by its number of moles.
However, the number of moles can be calculated using the following formula:
PV = nRT
Where;
P = pressureV = volumeR = gas law constantT = temperaturen = no of moles0.92 × 1.6 = n × 0.0821 × 287
1.47 = 23.56n
n = 1.47/23.56
n = 0.624moles
Molar mass = 0.314g ÷ 0.624mol
Molar mass = 0.503g/mol
Therefore, the molar mass of a 0.314-gram sample of gas having a volume of 1.6L at 287K and 0.92 atm is 0.503g/mol.
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Organic molecules (amino acids) needed to be concentrated to stimulate reactions to form proteinsconcentration mechanisms do not include?
Organic molecules (amino acids) needed to be concentrated to stimulate reactions to form proteins concentration mechanisms do not include Boiling Stones.
What is Amino Acids ?Amino acids organic compounds. Amino acids are building block of life these are the molecules which combine to form proteins. Amino acids contain the amino functional group that is -NH₂ and carboxyl functional group that is -COOH.
Example: Glycine, Alanine etc.
Thus from the above conclusion we can say that Organic molecules (amino acids) needed to be concentrated to stimulate reactions to form proteins concentration mechanisms do not include Boiling Stones.
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Compared to a solution with a ph value of 7, a solution with a thousand times greater hydronium ion concentration has a ph value of.
Answer:
pH = 4
Explanation:
pH is a base 10 logarithmic scale
1000 = 10^3
7 -3 = pH = 4
One metal object is a cube with edges 3.00 cm and a mass of 140.4 g. a second is a sphere with a radius of 1.42 cm and a mass of 61.6 g. are these objects made of the same metal?
Yes, the objects made of the same metal.
The volume of the first object, which is a cube, is equal to the edge length cubed.
This volume is converted to mL as follows:
V1 = [tex](3 cm)^{3}[/tex] = 27 [tex]cm^{3}[/tex] = 27 mL
Based on its given mass, the density will be:
d1 = m1/V1
= 140.4g/ 27.0 mL
= 5.20g/mL
The following thing is a sphere. We calculate the volume of a sphere using the following formula, with the result expressed in mL:
V1 = 4/3 *[tex]\pi[/tex]* [tex](1.42)^{2}[/tex]
= 12 [tex]cm^{3}[/tex]
= 12 mL
The density based on the following mass will be
d2= m2/V2
= 61.6 g/12.0 mL
= 5.14 g/mL
These two computed densities are separated by about 1%. We can determine that these objects are made of the same metal based on the precision of +/- 1% provided.
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The instructions for the experiment direct you to prepare 30 mL of 1.5 M HCl solution. In the chemical closet, you locate an 18M stock solution of HCl. What volume of the 18M HCl is needed to make the solution?
The volume of the 18M HCl needed to make the solution will be 2.5 mL.
DilutionAccording to the dilution principle, the number of moles of solutes in a solution before and after dilution must remain the same.
Since, mole = molarity x volume
Thus, molarity x volume before dilution = molarity x volume after dilution.
Mathematically, the equation is written as: m1v1 = m2v2
In this case, m1 = 18 M, m2 = 1.5 M, and v2 = 30 mL.
What we are looking for is v1, the amount of the stock HCl needed for dilution.
v1 = m2v2/m1 = 1.5 x 30/18 = 2.5 mL.
Thus, 2.5 mL of the stock HCl would be needed.
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Compared with the energy it takes to separate oxygen and hydrogen from water. How much energy is released when they recombine?.
The same amount of energy is released when they recombine.
How to separate oxygen and hydrogen from water?Electrolysis is a promising choice for without carbon hydrogen creation from inexhaustible and atomic assets. Electrolysis is the method involved with utilizing power to part water into hydrogen and oxygen. This response happens in a unit called an electrolyzer. Electrolyzers can go in size from little, apparatus size hardware that is appropriate for limited scope dispersed hydrogen creation to huge scope, focal creation offices that could be tied straightforwardly to sustainable or other non-ozone depleting substance radiating types of power creation.How Does it Work?Like energy components, electrolyzers comprise of an anode and a cathode isolated by an electrolyte. Different electrolyzers capability in various ways, fundamentally because of the different kind of electrolyte material included and the ionic species it conducts.
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A student weighs out 0. 0422 g of magnesium metal. The magnesium metal is reacted with excess hydrochloric acid to produce hydrogen gas. A sample of hydrogen gas is collected over water in a eudiometer at 32. 0°c. The volume of collected gas is 43. 9 ml and the atmospheric pressure is 832 mmhg. Using the experimentally collected data, calculate r and the percent error.
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Which covenant requires the grantor to execute any necessary legal documents (within his power) necessary to fix title defects discovered after closing?
The covenant of further assurances requires the grantor to execute any necessary legal documents (within his power) necessary to fix title defects discovered after closing.
What Are the Six Covenants of Title?A warranty deed is typically signed by both parties when a seller transfers real estate to a buyer. According to Deed Claim, this document certifies that the seller is the legitimate owner of the property and is selling it free of any liens while transferring the legal title to the buyer. The assurances made by the seller are represented by the six covenants of title. Three covenants are regarded as existing covenants, and as such, they are applicable to the parties to the most recent transfer. The other three are future covenants, and if they are broken, any owner may bring a claim against any prior grantor.
Covenant of Seisin
The seller's rightful ownership of the property is guaranteed by the present covenant of seisin.
No Encumbrances
The seller guarantees that the property is possessed free and clear by making the current covenant against encumbrances.
Right to Convey
According to TheLaw.com, having the right to convey indicates that the seller is legally permitted to transfer the property to the buyer.
Quiet Enjoyment
The future covenant of quiet enjoyment guarantees that a third party's legal claim to title won't affect the buyer's right to possession.
Covenant of Warranty
The warranty covenant and the quiet pleasure covenant are extremely similar.
Further Assurances
This prospective covenant is a guarantee that, should the need ever arise, the grantor will take all reasonable steps to assist the grantee in perfecting the title.
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Unless otherwise instructed, you may use the periodic table in the Chemistry: Problems and Solutions
book for this test.
Which series of atomic numbers represents the ordering of consecutive elements within the periodic table?
O 1, 2, 3, 4, ...
O 1, 3, 5, 7, ...
O 10, 20, 30, 40, ...
O 2, 4, 8, 16, ...
The sequence of atomic numbers 1, 2, 3, and 4 denotes the periodic table's ordering of following elements.
What purpose do series serve?Series are significant because they offer a possible point of entry. It's possible for a user to merely be aware of the fact that a publication is part of a specific series or to be searching for all publications in that series without being aware of any of the individual titles. The series could potentially be used as a storage and control system.
A series element is what?There are two ways to recognize elements in a series: The elements are in series if there are two and only two connections between them and a single node. When two elements' currents are determined to be similar by KCL at a node, the elements are in series.
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Identify oxidation.
a. Increase in oxidation number.
b. Loss of electrons.
c. Decrease in oxidation number.
d. Gain of electrons.
e. Both A and B
Oxidation is "Increase in oxidation number" as well as loss of electrons.
A rise in oxidation number results from the loss of negative electrons, whereas a reduction in oxidation number results from the gain of electrons. As a consequence, the oxidized element or ion experiences a rise in oxidation number.
As a result of losing electrons in the process, a reactant oxidizes. When a reactant obtains electrons during a reaction, reduction takes place. This frequently happens when acid and metals react.
Therefore, Oxidation is "Increase in oxidation number" as well as loss of electrons.
Hence, the correct answer will be option (e)
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Drag the tiles to the correct boxes to compete the pairs. identify the types of chemical reactions occurring in the chemical equations. respiration photosynthesis combustion reaction of fossil fuels methane oxygen → water carbon dioxide heat arrowright glucose oxygen → carbon dioxide water energy arrowright water carbon dioxide sunlight → oxygen glucose arrowright
Photosynthesis: water + carbon dioxide + sunlight → oxygen + glucose
Respiration: glucose + oxygen → carbon dioxide + water + energy
Combustion: methane + oxygen → water + carbon dioxide + heat
What is photosynthesis?The process by which plants convert carbon dioxide, water, and sunshine into oxygen and sugar-based energy is known as photosynthesis.
water + carbon dioxide + sunlight → oxygen + glucose
What is respiration?The sugars created during photosynthesis are combined with oxygen during the process of respiration in plants to create energy for plant development.
glucose + oxygen → carbon dioxide + water + energy
What is a combustion reaction?Combustion is a chemical process between substances that often involves oxygen and produces heat and light in the form of flame.
methane + oxygen → water + carbon dioxide + heat
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Photosynthesis: water + carbon dioxide + sunlight → oxygen + glucose
Respiration: glucose + oxygen → carbon dioxide + water + energy
Combustion: methane + oxygen → water + carbon dioxide + heat
What is photosynthesis?Green plants and certain other organisms convert light energy into chemical energy through a process called photosynthesis. Light energy is gathered and utilized during photosynthesis in green plants to change water, carbon dioxide, and minerals into oxygen and energy-rich organic molecules.What is respiration?The sugars created during photosynthesis are combined with oxygen during the process of respiration in plants to create energy for plant development. Respiration contrasts photosynthesis in several ways. Plants make their own sustenance to survive in the natural world.What is combustion?Combustion is a chemical reaction that takes place between two or more substances and releases heat and light in the form of a flame.To learn more about photosynthesis visit:
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Calculate the mass of 3.4 moles of nitric acid (hno3). explain the process or show your work by including all values used to determine the answer.
Answer:
6.34917360^25g
Explanation:
It's been a while since I've done this type of problem so I'm not making any promises that its right hahaha, but I hope it helps anyway. Please let me know whether I'm right or not!
What is the mass of 4. 00 moles of helium, the gas commonly used to fill party balloons and lighter-than-air ships?
Hydrocarbons containing only single bonds between the carbon atoms are called?
Answer:
Alkanes
Explanation:
Alkanes are hydrocarbons containing only single bonds between the parent chain carbons.
Alkenes are hydrocarbons containing at least one double bond between the parent chain carbons.
Alkynes are hydrocarbons containing at least one triple bond between the parent chain carbons.
Why is the vapor pressure of a warm lake higher than the vapor pressure of a cold lake?
Answer:
Explanation:
Warm lake vapor pressure is higher than cold lake vapor pressure because it evaporates more quickly. In other words, as the temperature of warm water increases, the kinetic energy of the warm water molecule also increases. As the kinetic energy of the warm water molecule increases, the number of molecules conversion into a vapor also increases, thereby increasing the vapor pressure of warm water.
Answer:
B.
Warm water evaporates more quickly.
Explanation:
i got it right on edmentum!!
A bumblebee carries pollen from the male portion of a plant to the female portion of the similar plant. Fertilization occurs. Which statement is true about this type of reproduction?
Answer:
It’s sexual, and the offspring are genetically different from the parents
Explanation:
Since it is the same flower the bee is pollinating, the progeny will be genetically distinct if the bee were to transfer the pollen to the female part of the flower from the male part.
Mehtyl alcohol is called wood spirit. Its molecular formula is CH3OH. Calculate the number of moles that would contain 2.5*10^21 molecules of this compound.
The 2.5 x 10²¹ molecules of CH₃OH have 0.00415 moles.
What is the mole concept?The Mole concept is used to express the amount of substance conveniently. A mole is defined as the amount of substance that contains exactly 6.022 x 10²³ elementary particles of the given substance. Here, elementary particles refer to atoms, molecules, or ions.This fixed number 6.022 x 10²³ is known as Avogadro Number and is denoted by [tex]N_A[/tex]How to calculate the number of moles?The number of moles is given by
[tex]n=\frac{m}{M}[/tex]
When given mass = molar mass of a substance, then no of moles is equal to 1 which is equivalent to 6.022 x 10²³.
We also know,
1 mole has 6.022 x 10²³ molecules of CH₃OH
According to the mole concept,
6.022 x 10²³ molecules of CH₃OH is equal to 1 mole
2.5 x 10²¹molecules of CH₃OH is equal to [tex]\frac{2.5\times10^2^1}{6.022 \times 10^2^3}[/tex] moles
Thus, 2.5 x 10²¹molecules of CH₃OH are equal to 4.15 x 10⁻³ moles or 0.00415 moles
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Enough of a monoprotic acid is dissolved in water to produce a 1. 50 m solution. the ph of the resulting solution is 2. 83. calculate the ka for the acid
1.4406 × 10⁻⁶ is the Ka(dissociation constant) for the acid.
The equilibrium constant for the reaction of an acid with water is the acid dissociation constant, where the acid, HA separates into H⁺ and A⁻ ions.
The acid dissociation constant is represented by (Ka).
So let's first imagine that the given monoprotic acid is HA.
HA will dissociate into H⁺ and A⁻ ions.
HA ⇒ H⁺ and A⁻
The formula used for Ka is
Ka = [H⁺] [A⁻] / [HA]
Given
pH = 2.83
[HA] = 1.50 M
From the given pH, we can calculate [H⁺] and [A⁻]
[H⁺] = [A⁻] = 1 × [tex]10^{-2.83}[/tex] = 1.47 × 10⁻³ M
Ka = 1.47 × 10⁻³ × 1.47 × 10⁻³ / 1.50
Ka = 1.4406 × 10⁻⁶
Hence, 1.4406 × 10⁻⁶ is the Ka for the acid.
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Why is the 6 m naoh solution diluted before titrating the vinegar sample? How might your results be affected if you used the 6 m solution rather than the 0. 3 m naoh?
The 6 M solution NaOH solution diluted before titrating the vinegar sample because pH at the equivalence point changes very rapidly . It is very useful to have dilution solution , so that number of moles that are transferred per drop of the solution is low . So, pH change smaller amount per drop. Having more dilute solution also allows the titration to use volume that is easier to work with.
If you used the 6 M solution was used then the volume required for titration would go down by a factor of 6/0.3 = 20
This means that if a titration took 20ml of the 0.3 M solution then it would take 1ml of the NaOH solution.
Titration consists of adding a controlled and known amount of standard solution with an unknown until the reaction to be complete.
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A coin collector has a bag of 50 pennies. What is weighted average of a penny in the sample according to the data?
The weighted average of a penny is = 67.9g
Calculation of average weightThe sample of penny for pre 1982 is a total of = 18 pennies.
The mass of each penny for pre 1982 = 3.1
Therefore the total weight for penny for pre 1982
= 18×3.1
= 55.8
The sample of penny for post 1982 is a total of = 32 pennies.
The mass of each penny for post 1982 = 2.5
Therefore the total weight for penny for post 1982
=32×2.5
= 80
The weighted average
= 55.8+80/2
= 135.8/2
= 67.9g
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Methane (CH4), ammonia (NH3), and oxygen (O2) can react to form hydrogen cyanide (HCN) and water according to this equation:
CH4 + NH3 + O2 à HCN + H2O
You have 8 g of methane and 10 g of ammonia in excess oxygen. Answer the following questions:
· What is the balanced equation for this reaction?
· Which reagent is limiting? Explain why.
· How many grams of hydrogen cyanide will be formed? Show your work.
Answer:
-----> 2 CH₄ + 2 NH₃ + 3 O₂ -----> 2 HCN + 6 H₂O
-----> CH₄ = Whichever reactant produces the smaller amount of product is the limiting reagent. This is because the limiting reagent runs out before all of the other reactant is completely used. Because CH₄ produces the smaller amount of product, it is the limiting reagent.
-----> 13.5 grams HCN
Explanation:
Part 1:
An equation is balanced when there is an equal amount of each reactant on both sides of the reaction. These amounts can be modified by adding coefficients in front of the molecules.
The unbalanced equation:
CH₄ + NH₃ + O₂ -----> HCN + H₂O
Reactants: 1 carbon, 7 hydrogen, 1 nitrogen, 2 oxygen
Products: 1 carbon, 3 hydrogen, 1 nitrogen, 1 oxygen
The balanced equation:
2 CH₄ + 2 NH₃ + 3 O₂ -----> 2 HCN + 6 H₂O
Reactants: 2 carbon, 14 hydrogen, 2 nitrogen, 6 oxygen
Products: 2 carbon, 14 hydrogen, 2 nitrogen, 6 oxygen
Part 2:
You can determine the limiting reactant by converting each reactant mass (besides O₂) to a product mass. Whichever reactant produces the smaller amount of product is the limiting reagent. This is because the limiting reagent runs out before all of the other reactant is completely used.
Let's convert to HCN because Part 3 also wants to know how much HCN is produced. To find this amount, you need to (1) convert grams reactant to moles reactant (via their molar masses), then (2) convert moles reactant to moles HCN (via the mole-to-mole ratio from equation coefficients), and then (3) convert moles HCN to grams HCN (via its molar mass).
Molar Mass (CH₄): 12.011 g/mol + 4(1.008 g/mol)
Molar Mass (CH₄): 16.043 g/mol
Molar Mass (NH₃): 14.009 g/mol + 3(1.008 g/mol)
Molar Mass (NH₃): 17.033 g/mol
Molar Mass (HCN): 1.008 g/mol + 12.011 g/mol + 14.009 g/mol
Molar Mass (HCN): 27.028 g/mol
8 g CH₄ 1 mole 2 moles HCN 27.028 g
-------------- x ---------------- x ---------------------- x ---------------- = 13.5 g HCN
16.034 g 2 moles CH₄ 1 mole
10 g NH₃ 1 mole 2 moles HCN 27.028 g
--------------- x ---------------- x ----------------------- x ---------------- = 15.9 g HCN
17.033 g 2 moles NH₃ 1 mole
Because CH₄ produces the smaller amount of product, it is the limiting reagent. Therefore, the actual amount of HCN produced is 13.5 g.
Explain the problem surrounding the ammonia-making process in terms of chemical equilibrium.
The main problem is the release of heat and thereby reducing yield of Ammonia.
What is chemical equilibrium?Chemical equilibrium is defined as the state of a reversible chemical reaction where there is no change in net amount of products and reactants involved in it.
What is an exothermic reaction?
Exothermic reaction is one of the chemical reactions that will produces heat during the formation of products.
At the chemical equilibrium, the chemical reaction will be as follows:
[tex]N_{2}[/tex] + 3[tex]H_{2}[/tex] → 2[tex]NH_{3}[/tex] + energy
The above chemical equilibrium equation indicates that energy will be released due to the reaction of nitrogen and hydrogen. The energy release increases the surrounding temperature and thereby it will reduce the yield of the ammonia. Thus it can be indicated as the major problem.
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What is the correct chemical name for the following structures pictured below?
The IUPAC names of the given compounds are 3-methylpentane, 1,3-butadiene, 1,3-dimethylcyclohexane, 2,3,5,5-tetramethyl-1,3-hexadiene, and 2,2-dimethylpentane respectively.
What are the IUPAC nomenclature rules?Find the longest continuous carbon chain. This chain is called a parent chain.Identify all the substituents attached to the parent chain.Number the carbon atoms from the end which gives the substituents the lowest number.If the substituent occurs more than one then the location of each point is given and the number of times the substituent occurs is indicated by a prefix like di, tri, tetra, and so on.Double bonds are always given preference. Give the double bond as low a number as possible.If there are two chains of equal lengths then choose the chain that hasgreatest numbers of side chainschain whose substituents have the lowest numberhaving least branched side chainsA cyclic (ring) hydrocarbon is represented by the prefix cyclo- which appears in front of the base name.Thus, following the IUPAC nomenclature rules the name of the given compounds are as follows:
3-methylpentane
1,3-butadiene
1,3-dimethylcyclohexane
2,3,5,5-tetramethyl-1,3-hexadiene
and 2,2-dimethylpentane
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Why is the vapor pressure of a warm pale higher than the vapor pressure of a cold lake
The vapor pressure of a warm pale higher than the vapor pressure of a cold lake because Warm water evaporates more quickly.
Hence, Option B is correct answer.
What is Evaporation ?The process in which a liquid or solid is converted into vapour is called Evaporation. When water gains the heat energy then it changes in to gas. When the temperature increases it speeds up the rate of evaporation.
The temperature of warm water increases, the kinetic energy of the warm water molecule also increases.
Thus from the above conclusion we can say that The vapour pressure of a warm lake is higher than the vapor pressure of a cold lake because Warm water evaporates more quickly.
Hence, Option B is correct answer.
Disclaimer: The question was given incomplete on the portal. Here is the complete questions.
Question: Why is the vapor pressure of a warm lake higher than the vapor pressure of a cold lake?
A. Warm water has a greater heat of vaporization.
B. Warm water evaporates more quickly.
C. Cool water evaporates more quickly.
D. Cool water has a greater heat of vaporization.
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How many significant figures are in this mass ? 25 , 803 , 000 , 000 mg
We have five significant figures in the value 25 , 803 , 000 , 000 mg.
What is significant figures?The term significant figures refers to the numbers of figures to which we can assign a mathematical values. The numbers that we refer to here must be non zero numbers.
The implies that we must look out for the values that are nonzero in the digits shown which is 25 , 803 , 000 , 000 mg. A close look at this values shows us that we have five figures that can be assigned values.
Thus we have five significant figures in the value 25 , 803 , 000 , 000 mg.
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