Flashcardziz ASSIGNMENT: Mole Ratios & Mole to Mole Calculations

Front

What is a mole ratio?

Back

A mole ratio is a ratio that relates the amounts in moles of any two compounds involved in a chemical reaction, derived from the coefficients of a balanced chemical equation.

Front

How do you determine the mole ratio from a balanced chemical equation?

Back

The mole ratio is determined by the coefficients of the reactants and products in the balanced chemical equation.

Front

Given the reaction N₂ + 3H₂ → 2NH₃, how many moles of H₂ are needed to react with 2 moles of N₂?

Back

6

Front

In the reaction 4NH₃ + 5O₂ → 4NO + 6H₂O, how many moles of H₂O are produced from 12 moles of NH₃?

Back

18

Front

What is the mole ratio of CO₂ to H₂O in the reaction 2 C₂H₆ + 7 O₂ → 4 CO₂ + 6 H₂O?

Back

2:3

Front

How many moles of CO₂ are produced when 17.5 moles of O₂ react fully in the reaction 2 C₂H₆ + 7 O₂ → 4 CO₂ + 6 H₂O?

Back

10

Front

What is the purpose of balancing a chemical equation?

Back

The purpose of balancing a chemical equation is to ensure that the law of conservation of mass is obeyed, meaning the number of atoms for each element is the same on both sides of the equation.

Front

What does the coefficient in a balanced chemical equation represent?

Back

The coefficient represents the number of moles of a substance involved in the reaction.

Front

In the reaction 2H₂ + O₂ → 2H₂O, what is the mole ratio of H₂ to O₂?

Back

2:1

Front

If 4 moles of NH₃ react, how many moles of NO are produced in the reaction 4NH₃ + 5O₂ → 4NO + 6H₂O?

Back

4