High School Chemistry - Identifying Limiting Reagents

1

Which of the following determines which reactant is the limiting reactant?

2

Consider the reaction of potassium carbonate with calcium nitrate to form potassium nitrate and calcium carbonate:

$K_{2}CO_{3} (aq) + Ca(NO_{3})_{2} (aq) \rightarrow CaCO_{3} (s) + 2KNO_{3} (aq)$

Suppose 50ml of a 0.250M potassium carbonate solution was mixed with 100ml of a 0.175M calcium nitrate solution. What is the maximum amount of calcium carbonate that could be obtained?

3

Consider the following reaction:

$N_{2} + 3H_{2} \rightarrow 2NH_{3}$

If the reaction starts initially with $\small 50g$ of nitrogen gas and $\small 15g$ of hydrogen gas, what will be the limiting reactant?

4

Consider the reaction of potassium carbonate with calcium nitrate to form potassium nitrate and calcium carbonate:

$K_{2}CO_{3} (aq) + Ca(NO_{3})_{2} (aq) \rightarrow CaCO_{3} (s) + 2KNO_{3} (aq)$

Suppose 50ml of a 0.250M potassium carbonate solution was mixed with 100ml of a 0.175M calcium nitrate solution. What is the maximum amount of calcium carbonate that could be obtained?

5

Hydrogen gas combines with oxygen gas during combustion to produce water according to the chemical reaction:

$2H_2+O_2\rightarrow2H_2O$

If 64 grams of oxygen gas and 6 grams of hydrogen gas are combusted, what amount of reactants will you have after the reaction?

6

What property will be most important in determining the limiting reagent of the following reaction, given the available amount of each reactant?

$2A(s)+B_2(g)\rightarrow 2AB$

Identifying Limiting Reagents

Practice Questions