Front

What is stoichiometry?

Back

Stoichiometry is the branch of chemistry that deals with the calculation of reactants and products in chemical reactions based on the conservation of mass.

Front

What does a balanced chemical equation represent?

Back

A balanced chemical equation represents the relationship between the quantities of reactants and products in a chemical reaction, ensuring that the number of atoms for each element is the same on both sides.

Front

How do you determine the number of moles from a given mass?

Back

To determine the number of moles from a given mass, use the formula: Moles = Mass (g) / Molar Mass (g/mol).

Front

What is the mole ratio in a chemical reaction?

Back

The mole ratio is the ratio of the coefficients of the reactants and products in a balanced chemical equation, used to convert between moles of different substances.

Front

How many moles of AlCl3 can be produced from 9 moles of Cl2 in the reaction 2Al + 3Cl2 → 2AlCl3?

Back

6 moles of AlCl3 can be produced from 9 moles of Cl2.

Front

In the reaction 4 NH3 + 5 O2 → 4 NO + 6 H2O, how many moles of water are produced from 3.2 moles of NH3?

Back

4.8 moles of water are produced from 3.2 moles of NH3.

Front

What is the molar mass of CH4 (methane)?

Back

The molar mass of CH4 is approximately 16.04 g/mol.

Front

How many moles of CO2 are produced from the combustion of 110 g of CH4?

Back

6.85 moles of CO2 are produced from the combustion of 110 g of CH4.

Front

What is the relationship between moles of reactants and products in a balanced equation?

Back

The relationship is defined by the coefficients in the balanced equation, which indicate the proportion of moles of each substance involved in the reaction.

Front

How many grams of NaOH are produced when 3.0 mol of water react in the equation 2Na + 2H2O → 2 NaOH + H2?

Back

120 g of NaOH are produced when 3.0 mol of water react.