Analyzing Reactions

Practice Questions

GRE Subject Test: Chemistry › Analyzing Reactions

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47.0g of nitrous acid, HNO2, is added to 4L of water. What is the resulting pH? $\dpi{100} \small \left (K_{a}=4.1\times 10^{-4} \right )$

NaOH is added to a 500mL of 2M acetic acid. If the pKa value of acetic acid is approximately 4.8, what volume of 2M NaOH must be added so that the pH of the solution is 4.8?

is a diprotic acid. Which of the following statements is true about its second half equivalence point?

Given the following equilibria, what is the hydroxide ion concentration of a solution containing $0.06\textup{ M}$ $NH_{3}$ ?

$NH_{3}+H_{2}O\rightleftharpoons\ NH_{4}^{+}+OH^{-}$

The $K_{b}$ for $NH_{3}$ is $1.75\times10^{-5}$

is a diprotic acid. Which of the following statements is true about its second half equivalence point?

Given the following equilibria, what is the hydroxide ion concentration of a solution containing $0.06\textup{ M}$ $NH_{3}$ ?

$NH_{3}+H_{2}O\rightleftharpoons\ NH_{4}^{+}+OH^{-}$

The $K_{b}$ for $NH_{3}$ is $1.75\times10^{-5}$

Consider the titration curve, in which an acid is treated with aqueous 0.5M NaOH.

Mcat8

What is the approximate pKa of the starting acid?

Consider the titration curve, in which an acid is treated with aqueous 0.5M NaOH.

Mcat8

What is the approximate pKa of the starting acid?

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