GRE Subject Test: Chemistry - Reaction Chemistry

1

Consider the reaction reaction below.

$N_2(g)+3H_2(g)\rightarrow2NH_3(g)$

A student allows the system to reach equilibrium and then removes two moles of hydrogen gas. Which of the following will be a result?

2

Consider the reaction reaction below.

$N_2(g)+3H_2(g)\rightarrow2NH_3(g)$

A student allows the system to reach equilibrium and then removes two moles of hydrogen gas. Which of the following will be a result?

3

A system contains iodine atoms that are in equilibrium with respect to the reaction below:

$2I_{(g)} \rightleftharpoons I_2_{(g)}$

The volume of the system is suddenly reduced, leading to an increase in pressure. What effect will this have on the reaction?

4

A system contains iodine atoms that are in equilibrium with respect to the reaction below:

$2I_{(g)} \rightleftharpoons I_2_{(g)}$

The volume of the system is suddenly reduced, leading to an increase in pressure. What effect will this have on the reaction?

5

Screen shot 2016 02 27 at 6.21.15 pm

For the reaction given, identify the type of reaction taking place.

6

Screen shot 2016 02 27 at 6.21.15 pm

For the reaction given, identify the type of reaction taking place.

7

$Na_2SO_4+BaCl_2 \rightarrow 2NaCl +BaSO_4$

When 15.5 grams of $Na_{2}SO_{4}$ is used in the given reaction, how many moles of $BaSO_{4}$ is produced?

8

$Na_2SO_4+BaCl_2 \rightarrow 2NaCl +BaSO_4$

When 15.5 grams of $Na_{2}SO_{4}$ is used in the given reaction, how many moles of $BaSO_{4}$ is produced?

9

Consider the following saturated solution. Assume it is at equilibrium.

$PbCrO_{4}_{(s)}\ \leftrightharpoons\ Pb^{2+}_{(aq)}\ + CrO_{4}^{2-}_{(aq)}$

$K_{sp} = 1.8 \cdot 10^{-14}$

What is the chromate ion concentration after 0.019 moles of lead nitrate is added to 1 L of the above solution?

10

Consider the following saturated solution. Assume it is at equilibrium.

$PbCrO_{4}_{(s)}\ \leftrightharpoons\ Pb^{2+}_{(aq)}\ + CrO_{4}^{2-}_{(aq)}$

$K_{sp} = 1.8 \cdot 10^{-14}$

What is the chromate ion concentration after 0.019 moles of lead nitrate is added to 1 L of the above solution?

Reaction Chemistry