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MAXImum [283]
3 years ago
7

Please help with 14-16 Thank you!

Chemistry
1 answer:
Natalka [10]3 years ago
4 0
I don't know about 14, but 15 is (4), because a liquid draws in heat to turn into a gas. 16 is (2), because to turn into a cold solid, something has to release heat.
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In the laboratory, a general chemistry student measured the pH of a 0.529 M aqueous solution of phenol (a weak acid), C6H5OH to
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The dissociation constant of phenol from given information is 9.34\times 10^{-11}.

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The measured pH of the solution = 5.153

C_6H_5OH\rightarrow C_6H_5O^-+H^+

Initially      c

At eq'm   c-x       x  x

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K_a=\frac{[C_6H_5O^-][H^+]}{[C_6H_5OOH]}

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