Al₂(SO₄)₃ + 3BaI₂ → 2AlI₃ + 3BaSO₄
Dsm-5 includes gambling disorder as an addictive disorder, along with substance use disorders. this change is considered important because it:_________
Dsm-5 includes gambling disorder as an addictive disorder, along with substance use disorders. This change is considered important because it suggest that people may become addicted to behavior net just substance.
What is Gambling ?Gambling disorder which involve repeated, problem gambling behavior. The behavior leads to problem for the individual families, and society.
The emotional and physical sign of gambling disorder are:
Anxiousness and DepressionHopelessnessLack of sleepPallor to skinGain loss of weightWhat are the effects of gambling disorder ?Gambling disorder make another kind of addiction that an individual uses to be able to deal with the situation. Start using the drugs alcohol to reduce the feeling of anxiety.
Thus from the above conclusion we can say that Dsm-5 includes gambling disorder as an addictive disorder, along with substance use disorders. This change is considered important because it suggest that people may become addicted to behavior net just substance.
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What would the volume of 40g of butane be under a pressure of 1000 Torr and a temperature of 18°C?
From the calculation, the volume of the gas is 12.6 L
What is the pressure of the gas?We can define the pressure of a gas as the force that the gas exerts per unit area of the container. Now we knw that we can be able to obtain the volume of the gas by the use of the ideal gas equation.
Now;
Number of moles = 40g/58 g/mol = 0.69 moles
1 mole of butane occupies 22.4 L
0.69 moles of butane occupies 0.69 moles * 22.4 L/ 1mole
= 15.5 L
Now;
P1 =760 Torr
V1 = 15.5 L
T1 = 273 K
P2 = 1000 Torr
V2 = ?
T2 = 18°C + 273 = 291 K
P1V1/T1 = P2V2/T2
P1V1T2 = P2V2T1
V2 = P1V1T2/P2T1
V2 = 760 Torr * 15.5 L * 291 K/1000 Torr * 273 K
V2 =12.6 L
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how to find the concentration of acid or alkali with pH value given
Answer: Use the pH scale.
Explanation:
A compound composed of 3. 3% h, 19. 3% c, and 77. 4% o has a molar mass of approximately 60 g/mol. What is the molecular formula of the compound?.
The molecular of the compound will be-(H₂CO₃)1= H₂CO₃
The given molecule has the molecular formula H2CO3, also known as Carbonic acid.
Given that-
Consequently,
H= 3.3%.
C=19.3%
O =77.4%
Number of H moles = 3.3/1 = 3.3
Number of C moles = 19.3/12 = 1.60
Number of O moles = 77.4/16 = 4.83
As a result, the ratio of C, H, and O atoms is 3.3: 1.60: 4.83.
Divide by the amount you obtain that is the smallest: 3.3/1.60; 1.60/1.60; 4.83/1.60 = 2: 1: 3
H2CO3 is the empirical formula.
Let (H2CO3)n be the molecular formula.
A molecular formula is a chemical formula that specifies how many atoms of each element there are in each molecule of a given substance.
Molar mass thus equals (21+112+3X16)n = 62n.
As per the inquiry, 62n = 60
alternatively, n= 0.96 (round figure is 1)
Therefore, carbonic acid is the chemical whose molecular formula is (H2CO3)1=H2CO3.
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0. 34 ll of hno3hno3 is titrated to equivalence using 0. 14 ll of 0. 1 mnaohmnaoh. what is the concentration of the hno3hno3 ?
When 0.34 of HNO₃ is titrated to equivalence using 0.14 l of 0.1 m NaOH then the concentration of HNO₃ is 0.041 M
The reaction of neutralization of HNO₃ with NaOH is
HNO₃ + NaOH → H₂O + NaNo₃
When 1 mole of HNO₃ react with 1 mole of NaOH, based on chemical rection the moles of NaOH at equivalence point are equal to moles of HNO₃ present in solution: -
With the mole and volumes, we can find molarity as follows:
Moles of NaOH = moles HNO₃
⁼ 0.14 L X (0.1 mol NaOH/L) = 0.014 mole NaOH
=0.014 mol HNO₃
Molarity: -
[tex]\frac{(Mole of HNO₃)}{(volume of HNO₃)}= \frac{0.014}{0.34}[/tex]
= 0.041 M
Thus, from above solution we concluded that the concentration of HNO₃ solution is 0.041 M.
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A molecule has four bonded atoms around a central atom. the central atom does not have any lone pairs of electrons. what is the geometry of the molecule? bent linear trigonal planar tetrahedral
Tetrahedral geometry is obtained when the central atom is bonded with four atoms.
When is the tetrahedral geometry obtained?Tetrahedral literally means "having four faces" because the prefix tetra- specifies four and the suffix -hedral denotes a face of a solid. This shape develops when there are no lone electron pairs and four bonds are all on the same core atom. According to the VSEPR theory, the bond angles between the electron bonds are 109.5°.
Tetrahedral molecules include methane (CH4) as one example. The four comparable bonds in three dimensions correspond to the four corners of a tetrahedron centered on the carbon atom, and they point in the same four geometric directions. Compounds with this molecular shape will have the formula AX4.
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Answer:
tetrahedral
Explanation:
Central atom has:
4 bonded atoms
0 lone pairs
VSEPR shape: tetrahedral
Molecule structure: tetrahedral
Serotonin acts as a weak base and has a pkb = 3. 84. what is the ph of a solution made by adding 0. 025 m of serotonin in water?
Serotonin acts as a weak base and has a pkb = 3. 84. The ph of a solution made by adding 0. 025 m of serotonin in water is 2.4.
A molecule called serotonin delivers information between nerve cells in the brain and other parts of the body. Body processes like mood, sleep, digestion, nausea, wound healing, bone health, blood clotting, and sexual desire are all significantly influenced by serotonin.
Tryptophan, an important amino acid, is used to make serotonin. This amino acid, which must be ingested by food, is frequently present in foods including nuts, cheese, and red meat. Lower amounts of serotonin can result from tryptophan insufficiency. Anxiety or depression may come from this, among other mood disorders. The chemical serotonin is essential for elevating mood and lowering anxiety.
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Select the correct answer.
What is the mole ratio of Cl₂ to Br₂ in the given reaction?
Cl₂ + 2NaBr-2NaCl + Br₂
OA 1:1
OB. 1:2
OC. 2:3
O D. 2:1
Answer:
A.) 1:1
Explanation:
You can determine the mole ratio between substances by comparing their coefficients in the balanced equation. Both Cl₂ and Br₂ have coefficients of 1. Therefore, they have a 1 to 1 (1:1) relationship.
If you were comparing the mole ratio of Cl₂ and NaBr, they would have a 1:2 relationship because Cl₂ has a coefficient of 1 and NaBr has a coefficient of 2.
Calculate the molality of a solution containing 14. 3 g of nacl in 42. 2 g of water
Answer:
5.80 M
Explanation:
In this problem, the solute is NaCl and the solvent is water. To find the molality, you need to (1) convert grams NaCl to moles NaCl (via molar mass), then (2) convert grams H₂O to kilograms H₂O, and then (3) calculate the molality (via molality equation). The final answer should have 3 sig figs to match the sig figs of the given values.
(Step 1)
Molar Mass (NaCl): 22.990 g/mol + 35.453 g/mol
Molar Mass (NaCl): 58.443 g/mol
14.3 grams NaCl 1 mole
-------------------------- x ------------------------ = 0.245 moles NaCl
58.443 grams
(Step 2)
1,000 g = 1 kg
42.2 grams H₂O 1 kg
-------------------------- x ----------------------- = 0.0422 kg H₂O
1,000 grams
(Step 3)
Molality = moles solute / mass solvent (kg)
Molality = 0.245 moles NaCl / 0.0422 kg H₂O
Molality = 5.80 M
What term refers to the addition (insertion) or removal (deletion) of one or more coding sequence letters (nucleic acids)?
Frameshift mutation refers to the addition (insertion) or removal (deletion) of one or more coding sequence letters (nucleic acids).
What is frameshift mutation?The insertion or deletion of nucleotide bases in amounts that are not multiples of three is referred to as a frameshift mutation in a gene. This is significant because a cell reads the genetic code for proteins in groups of three nucleotides. These so-called "triplet codons" each stand for one of the 20 different amino acids that go into making a protein.
The entire gene sequence after the mutation will be misread if a mutation alters this regular reading frame. This may lead to the incorrect amino acids being added to the protein or the development of a codon that prevents the protein from getting longer.
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Choose the chemical equation that is correctly balanced. 2ca(s) cl2(g) → cacl2(s) 4mg(s) o2(g) → 2mgo(s) li(s) cl2(g) → 2licl(s) c(s) o2(g) → co2(g)
23 grams of sodium reacts with 293 cm 3 of water that is initially at 298 k. it produces an enthalpy change of 197 kj. what is the final temperature of the water? the specific heat capacity of water is 4.18 j/k g.
448 K is the final temperature of the water.
What is specific heat capacity?The specific heat capacity is defined as the quantity of heat (J) absorbed per unit mass (kg) of the material when its temperature increases by 1 K (or 1 °C), and its units are J/(kg K) or J/(kg °C).
Given,
the mass of Na is 23 g
The volume of water = 293 cm3
Mass of water = 293 g
Total solution mass = 23 g + 293 g = 316 g
Specific heat capacity of water = 4.18 J/Kg
The equation relating mass, heat, specific heat capacity and temperature change is:
q = mcΔT
197 kJ = 316 g x 4.18 J/Kg x ([tex]T_{finals} - T_ {initial}[/tex])
197 kJ = 316 g x 4.18 J/Kg x ( [tex]T_{finals}[/tex]-298 K)
0.1491429956 x 1000 = [tex]T_{finals}[/tex]-298 K
149.1429956 + 298 = [tex]T_{finals}[/tex]
447.1429956 = [tex]T_{finals}[/tex]
448 K = [tex]T_{finals}[/tex]
Hence, 448 K is the final temperature of the water.
What does a high specific heat capacity mean?A high specific heat capacity means that it can store a large amount of thermal energy for a small change in mass or temperature.
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At the most basic level, in order to produce oxygen and a carbohydrate (comprised of carbon, hydrogen, and oxygen), carbon dioxide must react with _________ as a source of hydrogen.
At the most basic level, in order to produce oxygen and a carbohydrate (comprised of carbon, hydrogen, and oxygen), carbon dioxide must react with water as a source of hydrogen.
In order to construct carbohydrate molecules (often glucose) and release oxygen into the atmosphere, photosynthesis utilises carbon dioxide and water. Photosynthesis occurs in organelles called chloroplasts found in eukaryotic autotrophs like plants and algae.
Commonly used notation for photosynthesis is:
6CO[tex]_{2}[/tex] + 6H[tex]_{2}[/tex]O C[tex]_{6}[/tex]H[tex]_{12}[/tex]O[tex]_{6}[/tex] + 6O[tex]_{2}[/tex]
This indicates that the reactants, six carbon dioxide molecules and six water molecules, are transformed into a sugar molecule and six oxygen molecules, the products, by light energy being absorbed by chlorophyll.
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When the equation __no2 __h2o __o2 → __hno3 is balanced, the coefficient of hno3 is:_________
When the equation __[tex]NO_{2}[/tex] __[tex]H_{2} O[/tex] __[tex]O_{2}[/tex] → __[tex]HNO_{3}[/tex] is balanced, the coefficient of hno3 is 4.
An expression for a chemical reaction would be referred to as balanced if both the reactants as well as the products have an identical number of atoms with a total charge for each component of the reaction. In other words, two sides of the reaction have equal amounts of mass as well as charge.
The given unbalanced equation is __[tex]NO_{2}[/tex] __[tex]H_{2} O[/tex] __[tex]O_{2}[/tex] → __[tex]HNO_{3}[/tex] .
It can be seen that the count of hydrogen in reactant side 2 on the other hand the count of hydrogen atom is 1.
By multiplying by 4 as the coefficient of and [tex]NO_{2}[/tex] and by 2 as the coefficient of water then equation will be balanced.
The balanced chemical equation will be expressed as:
4 [tex]NO_{2}[/tex] + 2[tex]H_{2} O[/tex] +[tex]O_{2}[/tex] → 4[tex]HNO_{3}[/tex] .
Therefore, when the equation __[tex]NO_{2}[/tex] __[tex]H_{2} O[/tex] __[tex]O_{2}[/tex] → __[tex]HNO_{3}[/tex] is balanced, the coefficient of hno3 is 4.
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If another hydrogen of c2h5cl is replaced by a chlorine atom to yield c2h4cl2, how many isomers would result?
One isomer is formed
1,1- Dichloroethane is the isomer.
If another hydrogen of c2h5cl is replaced by a chlorine atom to yield c2h4cl2, it would result in one isomer.
In contrast to 1,2-dichloroethane, which has two chlorine atoms connected to distinct carbon atoms, 1,1-dichloroethane has two chlorine atoms bound to the same carbon atom.Isomers are each of two or more compounds having the same formula but various atom arrangements in the molecule and unique characteristics.What three types of isomers are there?Chain isomersFunctional group isomersPositional isomers
These are the three different categories of structural isomers.
How is an isomer recognized?Their bonding patterns and the way they occupy three-dimensional space can be used to distinguish them. Determine the bonding patterns of structural (constitutional) isomers. Although the atoms in the compounds are the same, their connections create various functional groups.What makes isomers significant?Because two isomers might have the same chemical formula but different chemical structures, they are significant. The molecule's properties are influenced by its structure.To learn more about isomers visit:
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How many moles of iron metal are required to react completely with 12 moles of oxygen?
Answer:
16 moles
Explanation:
from the equation:
4Fe + 3O2 -----> Fe2O3
the mole ratio of Fe to O2 follows,
3 moles O2 reacts with 4 moles Fe.
therefore,
1 mole O2 reacts with 4/3 moles Fe
and 12 moles O2 reacts with (4/3) × 12 moles Fe = 16 moles
Answer:
9.0 moles of O2 and produce 6.0 moles of Fe2O3
Explanation:
Fe→Fe3++3e− iron. Is oxidised: it's losing electrons
O2+4e−→2O2− oxygen Is reduced, it's gaining electrons
Balance for the electrons.
The smallest common product of 3 and 4 Is 12.
So we get:
4Fe→4Fe3++12e−
3O2+12e−→6O2−
Adding:
4Fe+3O2+12e−→4Fe3++12e−+6O2−
The electrons balance so they cancel out:
4Fe+3O2→4Fe3++6O2−
Since Fe and O can combine in a ratio of 2:3
4Fe+3O2→4Fe3++6O2−→2Fe2O3
Extra :
Pure iron. won't rust, because the oxide layer would form a protective skin (as aluminium does). It needs some impurities (mainly carbon) and, apart from the oxygen, some moisture -- even carbondioxide 'helps'. In that case iron.-hydroxy-oxides and -carbonates are formed, and these flake, no longer protecting the iron. underneath.
90cm3 of 1 m hcl solution and 10cm3 of 0.5 m naoh solution are mixed together. the concentration of hcl contained in the final solution
The concentration of HCl contained in the final solution is 0.95 M.
Calculation:Here, we use the dilution formula, which is,
M (V₁ + V₂) = M₁V₁ + M₂V₂
where,
M = resultant concentration
M₁ = concentration of HCl
V₁ = volume of HCl
M₂ = concentration of NaOH
V₂ = volume of NaOH
Given,
M₁ = 1 M
V₁ = 90 cm³ = 90 mL
M₂ = 0.5 M
V₂ = 10 cm³ = 10 mL
To find,
M =?
Put the values in the above formula,
M (V₁ + V₂) = M₁V₁ + M₂V₂
M (90 + 10) = (1 × 90) + (0.5 × 10)
M × 100 = 90 + 5
M × 100 = 95
M = 95/100
M = 0.95 M
Therefore, the concentration of HCl contained in the final solution is 0.95 M.
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An aqueous solution of isopropanol (mm = 60.10 g/mol) has a molality of 12.79 m and a density of 1.180 g/ml. what is the molarity of isopropanol in the solution?
The molarity of an aqueous solution of isopropanol = 15.09 mol/L
Molality = 12.79 m
This gives that 12.79 moles of isopropanol is dissolved in 1000 grams of water.
Density = 1.180 g/mL
We know that,
Density= mass/volume
volume = mass/density
= 1000/1.180
Volume = 847.46 ml
Molarity can be defined as the mass of solute per liter of the solution.
Molarity = moles × 1000/volume ------> (1)
The moles of isopropanol in 847.46 ml solution is 12.79.
On substituting in (1)
Molarity = 12.79 × 1000/847.46
Molarity= 15.09 mol/L
The molarity of aqueous solution of isopropanol is 15.09 mol/L
What is molality?
The number of moles of solute in a solution equal to 1 kg or 1000 g of solvent is referred to as its molality.
What is molarity?The amount of a substance in a specific volume of solution is known as its molarity (M). The number of moles of a solute per liter of a solution is known as molarity. The molar concentration of a solution is another name for molarity.To learn more about molality visit:
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The hydrolysis of phosphatidylinositol 4,5‑bisphosphate (pip2) by phospholipase c generates which two secondary messengers?
The hydrolysis of phosphatidylinositol 4,5‑bisphosphate (pip2) by phospholipase C generates inositol 1,4,5-trisphosphate ( [tex]IP_{3}[/tex] ) and diacylglycerol (DAG) secondary messengers.
The small molecules and ions relay signals received by cell-surface receptors to effector protein is referred as second messenger.Examples of secondary messengers are cyclic AMP,cyclic GMP inositol 1,4,5-trisphosphate ( [tex]IP_{3}[/tex] ) ,diacylglycerol (DAG) ,and calcium. [tex]IP_{3}[/tex] induces a transient increase in intracellular free [tex]Ca^{+2}[/tex] ,whereas DAG directly activates protein kinase C.
There are two distinct kinds of signaling pathways that use phosphatidylinositol. Phospholipase C breaks down phosphatidylinositol-4,5-bisphosphate to create IP3, which serves as a crucial part of the Ca-signaling mechanism described earlier.
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What is the value of k for this aqueous reaction at 298 k?298 k? a b↽−−⇀c dδ°=10. 35 kj/mol
The value of k for this aqueous reaction at 298 k a b↽−−⇀c dδ°=10. 35 KJ/mol is 30.37 mol.
What is K?
K is the song which is used to donate the equilibrium of a reaction and the equilibrium of the reaction can only be obtained when the concentration of reactant is equal to the concentration of the product.
K is also known as the equilibrium constant.
δG or dδ° = - R T In K
R = universal gas constant
T = 298 k or 24.4Celciuss
dδ°= 10. 35
substituting the value in the equation
10. 35 = - 8.313 × 24.4 celcius In k
In k = - 8.313 × 24.4 celcius / 10. 35
In k = 30.37 mol.
Therefore, the value of k for this aqueous reaction at 298 k a b↽−−⇀c dδ°=10. 35 KJ/mol is 30.37 mol.
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What enone product would you expect to obtain from intramolecular aldol condensation of 5-oxohexanal?
Cyclohex-2-en-1-one product would be obtain from intramolecular aldol condensation of 5-oxohexanal.
What is Intramolecular Aldol Condensation ?The condensation reaction in which two ketone groups and aldehyde group in the same molecule are called Intramolecular Aldol Condensation. Intramolecular Aldol Condensation occurs in five or six membered α, β- unsaturated aldehyde or ketones are formed.
Thus from the above conclusion we can say that Cyclohex-2-en-1-one product would be obtain from intramolecular aldol condensation of 5-oxohexanal.
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carbon 4+ ion protons neutrons electrons
Answer 6
Explanation: That means a carbon atom has 6 protons, 6 neutrons, and 6 electrons.
What is the molar absorptivity () of benzoic acid at 228 nm? assume that the path length is 1. 00 cm
The molar absorptivity () of benzoic acid at 228 nm? assume that the path length is 1. 00 cm is = 11178 M-1. cm-1
We are given, absorbance spectrum and from that the absorbance of benzoic acid at 228 nm
Absorbance = 0.8
Now we need to calculate the molar absorptivity of benzoic acid at 228 nm
We know at the 228 nm the A = 0.8 and C = 8.74 mg/L.
We also given the l = 1 cm
Moles of benzoic acid = 0.00874 g / 122.12 g.mol-1
= 7.16*10-5 moles
So, C of benzoic acid = 7.16*10-5 moles / L
We know the
ε = A/C*l
= 0.80 / 7.16*10-5 M. 1 cm
= 11178 M-1. cm-1
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More strong base is added until the equivalence point is reached. what is the ph of this solution at the equivalence point if the total volume is 57. 0 mlml ?
A more strong base is added until the equivalence point is reached. The ph of this solution at the equivalence point if the total volume is 57. 0 mill is 9.8
The potential of Hydrogen is what pH is formally known as. The negative logarithm of the concentration of H+ ions is known as pH. Thus, the definition of pH as the amount of hydrogen is provided. The hydrogen ion concentration in a solution is described by the pH scale, which also serves as a gauge for the solution's acidity or basicity.
The pH scale determines how acidic or basic water is. The range is 0 to 14, with 7 representing neutrality. Acidity is indicated by pH values below 7, whereas baseness is shown by pH values above 7. In reality, pH is a measurement of the proportion of free hydrogen and hydroxyl ions in water.
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The atomic and mass numbers for four different atoms are given below. Which two are isotopes?
What is the percent yield of a reaction that produces 12.5 g of the gas freon cf2cl from 32.9g of ccl4 and excess hf?
The percent yield of a reaction that produces 12.5 g of the gas freon cf2cl2 from 32.9g of ccl4 and excess HF is 48.33%
CCl4 + 2HF → CCl2F2 + 2HCl
Mass of CCl4 = 32.9 g
Mass of CCl2F2 (practical yield) = 12.5 g
Molecular mass of CCl4 = 153.82 g / mol
Number of moles of CCl4 = Mass of CCl4 / Molecular mass of CCl4
= 32.9 / 153.82
= 0.2139 mol
Number of moles of CCl4 = Number of moles of CF2Cl2 = 0.2139 mol
Molecular mass of CF2Cl2 = 120.91 g / mol
Mass of CCl2F2 = Number of moles of CF2Cl2 * Molecular mass of CF2Cl2
= 0.2139 * 120.91
Mass of CCl2F2 ( Theoretical yield ) = 25.8626 g
Percentage yield = Practical yield / Theoretical yield * 100
= 12.5 / 25.8626 * 100
Percentage yield = 48.33%
Hence, the percentage yield of CF2Cl2 is 48.33%
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The percent yield of a reaction that produces 12.5 g of the gas from CF2Cl2 from 32.9 g of CCl4 and excess HF is 48.33%.
Chemical equation:CCl4 + 2HF --- CCl2F2 + 2HCl
Mass of CCl4 = 32.9g
Mass of CCl2F2(practical yield) = 12.5g
Molar mass of CCl4 = 153.82 g/mil
Number of moles of CCl4= given mass / molar mass
= 32.9/153.82
= 0.2139mol
As we know
Number of moles of CCl4 = Number of moles of CF2Cl2 = 0.2139 mol
Molecular mass of CF2Cl2 = 120.91 g/ mol
Mass of CCl2F2= number of moles of CF2Cl2 × molar mass of CF2Cl2= 0.2139× 120.91
Mass of CF2Cl2 (Theoretical yield) = (12.5/25.8626) × 100
Percentage yield= 48.33%
Thus, we concluded that the percentage yield of CF2Cl2 is 48.33%.
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How do I find last significant figure. Please give a thorough explanation because I do not understand this (40 points)
Use 46.7350 as example
Answer:
Below I have listed a write up that helped me!
Explanation:
Here are some general rules regarding significant figures (or sigfigs!)
1) any number that is not a 0 is always a sigfig. In your example, the significant figures would be 4, 6, 7,3,5 and *0. (*there are special rules regarding the number 0)
2) If a 0 is between two non-zero digits (sigfigs), it will be a significant figure. For example, in the number 305, the 0 between the 3 and 5 would be considered a significant figure.
3) 0's that "lead", or are to the left of significant figures are NOT significant figures. For example, in the number 0.002, there would be only one significant figure, which is the 2.
4) 0's that "trail", or are to the right of a significant figure behind a decimal place, are significant figures. For example, in the number 3.1250, the 0 at the end would be considered significant. There are five sigfigs total in this number. The trailing 0 in your example would be significant!
5) However, regarding the rule above, if the number DOES NOT have a decimal place and has trailing 0's, those 0's will not be considered significant figures. For example, in the number 5,320, the 0 at the end would not be significant and there would be three sigfigs in this number.
The whole cloves are broken up to help release the eugenol during distillation.
a. true
b. false
The statement is False.
No, whole cloves are not broken up to help release the eugenol during distillation.
Steam distillation:
Live steam is used in the co-distillation technique of steam distillation to separate mixture components. It works well to extract essential oil constituents with high boiling points, such as those with boiling points of 200°C. However, the oil vapors themselves are warmer—around 100°C—helping to maintain the compounds' structural integrity. It enables distillation to be carried out at lower temperatures than the boiling points of the constituent parts. The high-boiling essential oils are vaporized by steam, and after passing through a cooling system, the hot vapors that were formed from them condense back into a liquid along with water. A two-phase distillate, consisting of a water layer and an oil layer, is created because the oils are immiscible in water.Learn more about the Steam distillation with the help of the given link:
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HELP PLS I WILL MARK U BRAINLIEST!
Answer: Calcium Hydroxide
Explanation:
CaOH will as it is the only base, the rest is acid
If the change in entropy of the surroundings for a process at 451 k and constant pressure is -326 j/k, what is the heat flow absorbed (in kj) by the system?
If the change in entropy of the surroundings for a process at 451 k and constant pressure is -326 j/k, then heat flow absorbed (in kj) by the system is -147.026kJ.
What is entropy?The entropy of particle is defined as how random it move. It shows the randomness of the system or may be disorders of the system. It is used to measure the unavailable energy for performing useful work.
Unit of entropy = J/K
Formula:∆s = ∆Q/T
where,
∆s = change in entropy of the surrounding = -326J/K
∆Q = heat absorbed from surrounding
T = Temperature = 451K
∆Q = ∆s × T
∆Q = -326 × 451
∆Q = 147,026 J
∆Q = 147.026 kJ
Thus we find that the heat absorbed by the system is 147.026 kJ.
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