Why are salt and sugar both able to dissolve in water, even though the solutes have different types of chemical bonding?.

The acid dissociation constant (Ka) defines the difference between a weak and a strong acid. The % ionization of hypochlorous acid is 0.14%.

The acid dissociation constant is used to define the ionization constant of an acidic substance. It gives the quantitative measurement of the strength.

The ICE table is attached to the image below.

The acid dissociation constant (Ka) for the reaction is,

Ka = [H⁺][ClO⁻] ÷ [HClO]

= a² ÷ (0.015 - a)

= 3.0 x 10⁻⁸

Now, a² + 3.0 x 10⁻⁸ a - 4.5 × 10⁻¹⁰ = 0

So, a = 2.210 × 10⁻⁵

Solving further,

[H+] = a = 2.210 × 10⁻⁵ M

The percent ionization is calculated as,

[H+] ÷ [HClO] × 100

= 2.210 × 10⁻⁵ M ÷ 0.015 × 100

= 0.14 %

Therefore, 0.14 % is the percentage of hypochlorous ionization.

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Your question is incomplete, but most probably your full question was, The ka of hypochlorous acid (HClO) is 3.0 x 10⁻⁸ at 25.0°C. What is the % of ionization of hypochlorous acid in a 0.015 aqueous solution of HClO at 25.0C?

A single replacement or displacement reaction occurs when one ingredient in a compound replaces another. Only another metal can replace a less active one; a metal can only displace another metal, and a non-metal can only displace another non-metal.

The tendency of the element to lose electrons is what makes it metallic. Due to their bigger sizes and propensity to lose electrons as size, the number of shells, and nuclear force of attraction rise, the most active metals are found on the left side of the periodic table.

The reaction in which the more reactive element displaces the less reactive element is known as the displacement reaction.

When we combine an active metal with HCl, the reaction is as follows:

We are taking sodium, Na which is the most active metal. It will replace H in HCl because it is more reactive than H.

                       2Na + 2HCl → 2NaCl + H₂

Three ways to recognize if a single displacement reaction has taken place:

1. Color change

2. Formation of bubbles (a gas)

3. Formation of a precipitate

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The balance the equation for a half-reaction that occurs in acidic solution is given as,

[tex]P_{4}+16H_{2} O+20e^{-}[/tex] → [tex]4H_{3}PO_{4}+20H^{+}[/tex]

The half-reaction method to balance redox reactions in acidic aqueous solutions follows rule.

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The value for this aqueous reaction at 298 k? a b↽−−⇀c dδ°=20. 46 KJ/mol is 9.91 mol. in equilibrium

When a chemical reaction happens at the liquid state and the formation of reactant and product is the same then the reaction is known as an aqueous reaction in equilibrium denoted by K.

δG = − R T ln

          R = universal gas constant 8.313

          δG= 20. 46 kj/mol

           T =  298 k or 24.4 in celcius.

substituting the value in the equation.

20. 46 kj/mol = 8.313 × 24.4 in celcius × K

K =  8.313 × 24.4 in celcius / 20. 46 kj/mo

k = 9.91 mol .

Therefore, The value of this aqueous reaction at 298 k? a b↽−−⇀c dδ°=20. 46 KJ/mol is 9.91 mol. in equilibrium

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The compound is classified as a secondary amine

Two organic substituents (alkyl, aryl, or both) are bonded to the nitrogen together with one hydrogen in secondary amines. Dimethylamine is a significant representation, while diphenylamine is an example of an aromatic amine. Secondary amines are amines that have two alkyl or aryl groups in place of the two hydrogen atoms of ammonia.

The molecule is methylpropylamine, a secondary amine because the nitrogen atom has both a methyl group and a propyl group. Compared to primary amines, secondary amines are more basic. The NH2 group is joined to the electron-withdrawing C6H5 group in aromatic amines. As a result, there are fewer single electron pairs available on N. Alkyl amines are hence more basic than aromatic amines.

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The chemical equation of photosynthesis includes 6[tex]O_{2}[/tex]. -----a gas produced during photosynthesis best describes this substance

Elaborate:

During photosynthesis plants use carbon dioxide, water and sunlight to make sugar (glucose) and a waste product, oxygen gas.

the equation of this process can be:

6 [tex]CO_{2}[/tex] + 6 [tex]H_{2} O[/tex] + light energy  →  [tex]C_{6} H_{12} O_{6}[/tex] + 6 [tex]O_{2}[/tex]

carbon dioxide + water + light  →   glucose + oxygen

Is 6[tex]O_{2}[/tex] a product of photosynthesis?

In photosynthesis, energy from light is used to convert carbon dioxide and water into glucose and oxygen. For 6 carbon dioxide and 6 water molecules, 1 glucose molecule and 6 oxygen molecules are produced.

What happens to sugar water oxygen and carbon dioxide during photosynthesis?

During photosynthesis, plants take in carbon dioxide  and water  from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose.

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When 25.0 g of Mg react with 25.0 g of O₂ it produce 41.9g of MgO.

Chemical reaction:

2Mg + O₂ → 2 MgO

Given,

Mass of Mg = 24g

Mass of O₂ = 25 g

Molar mass of O₂ = 16×2

= 32 g

Molar mass of Mg = 24.3

Moles of Mg  =25/24.3

=1.04mole

Moles of O₂  =25/32

=0.78mole

From above reaction we can say that 2moles of mg react with 1moles of O₂ to give 2moles of MgO.

So, 1 mole of Mg react with 0.5 mole of O₂ to produce 1mole of MgO.

So, 1.04 react with= 0.5× 1.04

= 0.520 g oxygen to give 1.04 moles of MgO.

From above we can say that Mg is limiting reagent.

Moles of MgO =1.04

Molar mass of MgO =40.3

Mole =given mass/ molar mass

1.04  =mass/ 40.3

Mass = 1.04×40.3

41.9 g

Thus, from above we concluded that 25.0 g of Mg react with 25.0 g of O₂  it produce 41.9g of MgO.

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Answer:

seed, sprout, small plant, and adult plant.

Explanation:

I didnt see the picture so I cant tell you what stage it represented but I told you all the stages of plants in life cycle.

The number of moles of the gas is 0.0396 moles.

The ideal gas equation is used to determine the relationship between the variables; temperature, pressure, volume and the number of moles of a gas. We know that the gas laws are used to understudy the parameters that has to do with gases.

Thus;

Volume = 1000.0 cm 3 or 1 L

Gas constant = 0.082 atmLK-1Mol-1

Temperature = 32 o C + 273 K = 305 K

Pressure =  752 mm Hg  or 0.99 atm

Thus;

PV = nRT

n = PV/RT

n =  0.99 atm *  1 L/0.082 atmLK-1Mol-1 * 305 K

n = 0.0396 moles

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Answer: The main disadvantages of evaporation are high capital, energy and maintenance costs; large size of apparatus; enhanced temperatures; corrosion problems; and scaling or foaming.

Explanation:

Markovnikov addition product from the addition of hi to 2-methyl-2-butene is 2-iodo-2-mehtylbutane.

What is Markonikov rule?

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The correct time interval is (2,20) to (4,80).

The average velocity is defined as the velocity or speed of the body throughout the period of motion under consideration. This will always span the entire journey. Recall that velocity is the ratio of distance covered to time taken. The average velocity spans the entire journey and differs from the instantaneous velocity which occurs at a particular point along the journey.

Now we know that the average distance is obtained as the sum of the initial and final velocity multiplied by time and divided by two. Bear in mind that the question already contains the information that we have been told that the average velocity here is 40 km/hr. We can clearly see from the forgoing that the correct time interval is (2,20) to (4,80).

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BrCH2CH2CH2Br exhibits only two signals in its 1h NMR spectrum, a triplet and a quintet (splitting of 5)

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The molarity of the solution is 0.32 M

Calculation,

Molarity of the solution is the total number of moles present in volume in liter.

molarity = number of moles/volume in liter = n/V                  ...(i)

Number of moles of sulfuric acid = given mass/molar mass

Number of moles of sulfuric acid (n) = 16g/98.079g/mol = 0.16 mole

Volume of the solution (V) = 0.5 L

Putting the value of volume and number of moles in equation (i) we get,

molarity = 0.16 mol/0.5 L = 0.32 mol/L = 0.32 M

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In 2021 the James Webb Telescope will begin operation focusing on infrared wavelengths and must be kept extremely cold.

The James Webb Telescope is the most important optical telescope present in space, which is employed by astronomers to observe celestial bodies and physical phenomena in the universe.

This space telescope (James Webb Telescope) is based on the infrared wavelengths that cover a specific length of 0.57 to 28-micrometer waves and enable to observe different spectra across the Universe.

In conclusion, in 2021 the James Webb Telescope will begin operation focusing on infrared wavelengths and must be kept extremely cold.

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Cis-platin is a chemotherapy agent used to treat and kill cancerous cells in patients. One mole of cis-platin has a mass of 300.06 grams/mol. Thus, option B is correct.

A chemotherapy agent is an alkylating agent that is used to treat cancer and is given to reduce the infection or to relieve the symptoms. Cis-platin (Pt(NH₃)₂Cl₂) is one of the chemotherapy agents that treat lung, ovarian, and neck cancer, etc.

The mass of one mole of Cis-platin is calculated as,

Moles = mass ÷ molar mass

Where,

Moles = 1 mole

The molar mass of (Pt(NH₃)₂Cl₂) is calculated as,

195.06 g/mole + 2(17g/mole) + (35.5)2 = 300.06 grams

Substituting values to calculate mass:

Mass = Molar mass × moles

= 300. 06  × 1

= 300.06 grams/mol

Therefore, option B. 300.06 gm/mol is the mass of Cis-platin.

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Your question is incomplete, but most probably your full question was, Cis-platin is a chlorine-containing chemotherapy agent with the formula pt(nh3)2cl2. What is the mass of one mole of cis-platin?

Based on the calculations, the total pressure of the final products is equal to 1.76 atm.

From the information provided about this chemical reaction, we can logically deduce the following parameters:

Next, we would write the properly balanced chemical equation for this chemical reaction:

                               I₂ + 5F₂   ⇒  2IF₅

Also, we would determine the number of moles of each atom of I₂ and F₂:

[tex]Number \;of \;moles = \frac{mass}{molar\;mass}[/tex]

Substituting the given parameters into the formula, we have;

Number of moles = 63.45/253.8

Number of moles = 0.25 moles.

Assuming I₂ were limiting, we would need:

5 × 0.25 = 1.25 moles of F₂.

For fluorine gas, we have:

PV = mRT/MM

Mass, m = PVMM/RT

Mass, m = 2.5(5.00)(38)/(0.0821 × 298)

Mass, m = 475/24.4658

Mass, m = 19.42 grams.

Number of moles = 19.42/38

Number of moles = 0.51 moles.

The total number of moles = 0.25 + 0.51 = 0.76 mol.

For the mole fraction of I₂, we have:

Mf = 0.25/0.76

Mole fraction = 0.33.

For the mole fraction of F₂, we have:

Mole fraction = 1 - 0.33 = 0.67.

Next, we would determine the total pressure of the two elements by applying Dalton's law:

Total pressure = 0.33 × 0.27 + 0.67 × 2.5

Total pressure = 1.76 atm.

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a b ⇌ ab

The equilibrium  Shifts left simultaneously, there’s an increase in the Reverse reaction.

When the addition of the reactant in reaction system then the equilibrium will shift to the right (forward) direction of the reaction.

What happens if the equilibrium shifts to the right?

What does it mean when equilibrium lies to the left?

When we say that an equilibrium is "to the left," we mean that the educt or reactant is preferred, meaning that there is more H2O present than H3O+ or OH.

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The number of NH₄⁺ NH₄⁺ and CO₃⁻² CO₃⁻² ions required to form a neutral ionic compound are 2 and 1 respectively.

A Neutral Ionic Compound means a compound that is made by both positively and negatively charged ions i.e. cations and anions respectively.

NH₄⁺ is called as Ammonium ion formed due to addition of H+ (Proton) in Ammonia and CO₃⁻² is called as Carbonate ion formed with a Trigonal Planar structure.

For a compound having NH₄⁺ and CO₃⁻², a neutral compound can be made by keeping the total charge on the compound to be zero.

Hence, Ammonium carbonate (NH₄) ₂CO₃ is a neutral compound formed by taking 2 NH₄⁺ and 1 CO₃⁻² ions.

So, for the formation of the Neutral compound i.e. Ammonium carbonate (NH₄) ₂CO₃ , 2 NH₄⁺ and 1 CO₃⁻² is needed.

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While assigning a term for a chemical to be an acid or base we have to look for the [tex]H^{+}[/tex] ions that can be donated by a chemical formulas or [tex]OH^{-}[/tex] ions for the basic , When you created hypotheses to guess whether each chemical was an acid or base,

To determine whether a substance is an acid or base , count the hydrogen on each substance before and after the reaction . If the number of hydrogens has decreased the substance is the acid ( donates hydrogen ions ) . If the number of hydrogens has increased that substance is the base ( accepts hydrogen ion )

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The relationship between the light emitted by an atom and the energies of the electrons in the atom is that the energy emitted by an atom is equal to the difference between the energy of two orbitals.

According to Bohr's model:

In Bohr's theory, the electron can jump from a lower energy level to a higher energy level, and when the energy is removed electron comes back to the initial energy level. Bohr proposed the energy and radii of an electron in the atom are quantized.

Energy between the orbits is given by,

∆E = E -E°

where ∆E = difference between the energy of orbital.

E = initial energy

E° = final energy.

Thus, we concluded that the energies of electron in the atom is equal difference between the energy of two orbitals.

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Taking into account the scientific notation,  the result of the subtraction is 6.5×10⁵.

First, remember that scientific notation is a quick way to represent a number using powers of base ten.

The numbers are written as a product:

a×10ⁿ

where:

You want to subtract two numbers in scientific notation. It should be noted that when the numbers to be added do not have the same base 10 exponent, the base 10 power with the highest exponent must be found. In this case, the highest exponent is 5.

Then all the values ​​are expressed as a function of the base 10 exponent with the highest exponent. In this case: 5.00×10⁴=0.500×10⁵

Taking the quantities to the same exponent, all you have to do is subtract what was previously called the number "a". In this case:

7.00×10⁵ - 0.500×10⁵= (7.00- 0.500)×10⁵= 6.5×10⁵

Finally, the result of the subtraction is 6.5×10⁵.

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Answer:

- Corrosion resistant

- High tensile strength (the maximum stress that a material can withstand while being stretched or pulled before breaking)

- Temperature resistant

- Easy formability and fabrication

- Low maintenance (long lasting)

- Attractive appearance

- Environmentally friendly (recyclable)

Answer:

See below

Explanation:

I suppose you could include these properties:

Specific heat =  .5  J/g-C

Density =~  7500 kg/m^3

melting point approx 1500 ° C  

   among others .....

The sketch of two amino acid side by side is given above.

Amino acid is defined as the acid which contains two functional groups which are carboxylic group, -COOH and ammine group, -NH2.

When the two or more than two molecules of amino acids join together by forming peptide bond, they produces polypeptide chain or protein.

The bond which is present inbetween two amino acid is called a peptide bond.

The peptide bond is defined as a chemical bond which is formed inbetween the two or more molecules when nitrogen which is present in one amino acid react with the carbon of another amino acid by releasing a molecules of water.

Thus we concluded that the two amino acid bond by forming peptide bond.

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Covalent hydrogen bond is joining the two hydrogen atoms.

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The boiling point of water would increase by 1°C if 1 mol of NaCl added 1 kg of water.

The addition of solute substances to solvent such as water results in a change in the boiling points and freezing points of the solvents.

The formula to calculate the change in temperature is given below:

ΔT = Kbmi

Where;

m is molality of the solution

Kb and i are constants.

Solving for change in temperature:

m = 1 mol/kg

ΔT = 0.51 * 1 * 2

ΔT = 1°C

The normal boiling point of water is 100°C

The new boiling point of the solution = (100 + 1) = 101 °C

In conclusion, addition of solute to solvent will result in change in the boiling point of the solvent.

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Pt195 having 78 atomic number is the daughter nucleus produced when Au195 undergoes electron capture.

An unstable isotopes can undergoes radioactive decay to form a more stable isotopes . Initial isotopes is called parent nuclide and the resultant isotopes from radioactive decay is called the daughter nuclide There are several radioactive decay like alpha decay , beta decay  , gamma decay , electron capture etc .

In electron capture , the atom have only one less which is daughter isotopes than electron than atomic number of parent isotopes.

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The concentration of the original calcium ions is 0.005 M

The term concentration has to do with the amount of substance in solution. We know that the concentration can be measured in a lot of units such as mole/litre, grams per litre, percentage and so on.

As such we have the equation;

Ca^2+(aq) + (NH4)2CrO4(aq) --------> CaCrO4(s) + 2NH4^+(aq)

Number of moles of the precipitate = 346.7 * 10^-3 g/156 g/mol

= 0.0022 moles

Now;

1 mole of Ca^2+ produces 1 mole of CaCrO4 hence 0.0022 moles of CaCrO4 was produced by  0.0022 moles of CaCrO4.

Given that the volume of the solution is  0.440 L, the concentration of the solution is;   0.0022 moles/0.440 L

= 0.005 M

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The frequency of light having a wavelength of 425nm will be 70588 × [tex]10^{14} Hz[/tex].

The count of times an event takes place per unit of time is known as its frequency. The word frequency would be most frequently used to describe waves in physics including chemistry, including light, sound, including radio waves. The frequency refers to the number of times during one second that a point on a wave crosses a fixed reference point.

A waveform signal that is carried in space or down a wire has a wavelength, which is the separation between two identical places  in the consecutive cycles.

Given data:

wavelength = 425nm = [tex]425 * 10^{-9} m[/tex]

Frequency can be calculated by using the formula;

Frequency =  speed of light / wavelength

Frequency = 3 × [tex]10^{8} m/s[/tex] / 425 × [tex]10^{-9} m[/tex] = 7,0588 × [tex]10^{14} Hz[/tex].

Therefore, the frequency of light having a wavelength of 425nm will be 70588 × [tex]10^{14} Hz[/tex].

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