Stoichiometry Practice

Front

What is the first step to solve a stoichiometry problem?

Back

Write a Balanced Equation.

Front

What is the volume of hydrogen produced at STP from 67.3 g of magnesium in the reaction 1Mg + 2H2O -> Mg(OH)2 + H2?

Back

62.0 L.

Front

In the reaction 3 Mg + 1 Fe2O3 → 3 MgO + 2 Fe, what is the mole ratio of Mg to Fe?

Back

3 mol Mg / 2 mol Fe.

Front

In the reaction 2CO + O2 -> 2CO2, how many liters of carbon dioxide are produced from 10L of carbon monoxide?

Back

10 L.

Front

How many particles are in a mole?

Back

6.02 x 10^23.

Front

What is stoichiometry?

Back

The calculation of reactants and products in chemical reactions.

Front

What does a balanced chemical equation represent?

Back

It represents the conservation of mass in a chemical reaction.

Front

What is the molar mass of magnesium (Mg)?

Back

24.31 g/mol.

Front

What is the significance of STP in stoichiometry?

Back

STP stands for Standard Temperature and Pressure, which is 0°C and 1 atm.

Front

What is the formula to calculate moles from mass?

Back

Moles = Mass (g) / Molar Mass (g/mol).