Mole Ratio

Front

What is a mole ratio in a chemical reaction?

Back

A mole ratio is a ratio that shows the relative amounts of moles of reactants and products in a balanced chemical equation.

Front

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

Back

To determine the mole ratio, identify the coefficients of the reactants and products in the balanced equation and use them as the ratio of moles.

Front

Given the balanced equation 4NH₃ + 6NO → 5N₂ + 6H₂O, what is the mole ratio of NH₃ to N₂?

Back

The mole ratio of NH₃ to N₂ is 4:5.

Front

In the reaction 4NH₃ + 6NO → 5N₂ + 6H₂O, what is the mole ratio of H₂O to N₂?

Back

The mole ratio of H₂O to N₂ is 6:5.

Front

What is the mole ratio of Ba(OH)₂ to AlPO₄ in the reaction AlPO₄ + 3Ba(OH)₂ → Al(OH)₃ + Ba₃(PO₄)₂?

Back

The mole ratio of Ba(OH)₂ to AlPO₄ is 3:2.

Front

From the reaction 4Al + 3O₂ → 2Al₂O₃, what is the mole ratio of Al₂O₃ produced from 3 moles of Al?

Back

The mole ratio of Al₂O₃ produced from 3 moles of Al is 2:4 or simplified to 1:2.

Front

What does a balanced chemical equation indicate about the reactants and products?

Back

A balanced chemical equation indicates the conservation of mass, showing that the number of atoms of each element is the same on both sides of the equation.

Front

Why is it important to use balanced equations when calculating mole ratios?

Back

Using balanced equations ensures that the calculations reflect the actual proportions of reactants and products involved in the reaction.

Front

What is the significance of coefficients in a balanced chemical equation?

Back

Coefficients represent the number of moles of each substance involved in the reaction, which are used to determine mole ratios.

Front

How can you simplify a mole ratio?

Back

A mole ratio can be simplified by dividing both parts of the ratio by their greatest common divisor.