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Sunny_sXe [5.5K]
4 years ago
13

nough of a monoprotic acid is dissolved in water to produce a 0.0199 M solution. The pH of the resulting solution is 2.64 . Calc

ulate the K a for the acid.
Chemistry
1 answer:
Debora [2.8K]4 years ago
5 0

Answer:

Explanation

pH = 2.64

pH = - log [H+]

[H+] = 0.00229 M

HA = 0.0199 M

Dissociation equation

HA --> H+ + A-

Ka = [H+][A-]/[HA]

[H+] = [A-]

Ka = (0.00229^2)/0.0199

= 2.64 × 10^-4 M

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Which of the follow describes what happpens to the kinetic energy of water when it changes from the solid state to a liquid stat
Anestetic [448]

Answer:

Kinetic energy increases.

Explanation:

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From greatest to lowest kinetic energy:

gas, liquid, solid

7 0
4 years ago
Select the compound that is most likely to increase the solubility of ZnSe when added to water.NaCnMgBr2NaClKClO4
vlada-n [284]

Answer:

NaCl.

Explanation:

In the solution, ZnSe ionizes to Zn^2^+ and Se^2^- . Following reaction represents the ionization of ZnSe in solution -

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Now, Zn^2^+ in the solution will react with two Cl^- ions to form ZnCl_2 as follows -

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Due to this reaction the concentration of Zn^2^+ will decrease in the solution and more ZnSe can be soluble in the solution.

6 0
3 years ago
The molecular formula of butane is C4H10. It is obtained from petroleum and is used commonly in LPG (Liquefied Petroleum Gas) cy
LUCKY_DIMON [66]

Answer:

Explanation:

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8 0
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Ganezh [65]
Hola!

→ Your query:
Atoms of one element easily changes to atoms of another element. Is it True? or False?

→ The answer is: TRUE

→ Reason :
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This is how nuclear fusion works. 

hope it helps!
6 0
3 years ago
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Predict the most likely bond type for the following.
Amiraneli [1.4K]

Answer:

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Explanation:

a. Cu (Copper)-<em> ionic bonding </em>

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8 0
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