Stoichiometry with Reactions

Practice Questions

AP Chemistry › Stoichiometry with Reactions

Questions

9

1

What volume of 0.5M NaOH is necessary to neutralize 15mL of 1.0M nitrous acid?

2

The formation of ammonia is given by the following equation:

$3H_2+N_2\rightarrow 2NH_3$

Assuming you started with 20g of hydrogen gas, how much nitrogen gas is necessary to react the hydrogen gas?

3

What volume of chlorine gas at is needed to react with 14.2g of sodium to form NaCl at 1.72atm?

4

Consider the following chemical reaction:

$Al_2O_3(s)+3H_2SO_4(aq)\rightarrow Al_2(SO_4)_3(aq)+3H_2O(l)$

How many moles of will be produced if 75.0mL of water is produced?

5

How many moles of water vapor will be formed when 5.00g of hydrogen gas react with excess oxygen?

6

Magnesium will combine with oxygen gas to form magnesium oxide according to the balanced equation below.

$2Mg + O_{2}\rightarrow2MgO$

If 65g of MgO are created in the reaction, how many grams of magnesium are used in the reaction?

7

The formation of ammonia is given by the following equation:

$3H_2+N_2\rightarrow 2NH_3$

Assuming you start with 15mol of hydrogen gas, how many moles of nitrogen gas will be needed to completely react the hydrogen gas?

8

What volume of 0.5M Mg(OH)2 is necessary to neutralize 15mL of 1.0M nitrous acid?

9

Consider the reaction of baking soda and vinegar in an aqueous solution:

$NaHCO_{3\hspace{1 mm}(s)}+CH_3 COOH_{(l)}\rightarrow CO_{2\hspace{1 mm}(g)}+H_2O_{(l)}+Na^{+}{(aq)}+CH_3COO^{-}{(aq)}$

If we begin with 17g of $NaHCO_3$ and excess $CH_3COOH$ , what is the volume of the gas released?

Assume that all gases behave as ideal gases at atmospheric pressure. The temperature is 298K.

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