Chemistry: Valeric acid, HC5H9O2 (Ka = 1.5 ✕ 10−5), is used in the manufacture of magnesium valerate, a nerve-calming agent. What is the hydronium ion concentration (in M) in a 0.737 M solution of HC5H9O2? (Assume Kw = 1.01 ✕ 10−14.)

Valeric acid, HC5H9O2 (Ka = 1.5 ✕ 10−5), is used

Ответ:

Inrt8134

23.01.2022

Chemistry

[H^+]=0.00332M

Explanation:

Hello,

In this case, considering the dissociation of valeric acid as:

$HC_5H_9O_2 \rightleftharpoons C_5H_9O_2 ^-+H^+$

Its corresponding law of mass action is:

$Ka=\frac{[H^+][C_5H_9O_2^-]}{[HC_5H_9O_2]}$

Now, by means of the change due to dissociation, it becomes:

$Ka=\frac{(x)(x)}{0.737-x}=1.5x10^{-5}$

Solving for we obtain:

x=0.00332M

Thus, since the concentration of hydronium equals , the answer is:

[H^+]=x=0.00332M

Best regards.

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Ответ:

lexieprochaskaaa

11.07.2022

Chemistry

Los niveles de energía (también llamados capas de electrones) son distancias fijas desde el núcleo de un átomo donde se pueden encontrar los electrones. A medida que se aleja del núcleo, los electrones en niveles de energía más altos tienen más energía. ... El número máximo de electrones a un nivel de energía dado depende de su número de orbitales

Explanation:

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Valeric acid, HC5H9O2 (Ka = 1.5 ✕ 10−5), is used in the manufacture of magnesium valerate, a nerve-calming agent. What is the hydronium ion concentration (in M) in a 0.737 M solution of HC5H9O2? (Assume Kw = 1.01 ✕ 10−14.)

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