Stoichiometry moles to mass

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 is a mole in chemistry?

Back

A mole is a counting term in chemistry that represents 6.022 x 10^23 particles (atoms, molecules, ions, etc.).

Front

What are coefficients in a chemical equation?

Back

Coefficients are the numbers placed in front of the compounds in a chemical equation that indicate the ratio of moles of each substance involved in the reaction.

Front

How do you determine the molar ratio from a balanced equation?

Back

The molar ratio is determined by the coefficients of the balanced equation, representing the ratio of moles of each reactant and product.

Front

What is the molar ratio of 2 C2H2 + 5 O2 -> 4 CO2 + 2 H2O for O2 to CO2?

Back

5 mol O2 : 4 mol CO2.

Front

How many moles of H2O are produced from 2 moles of C2H2?

Back

2 moles of C2H2 produce 2 moles of H2O according to the balanced equation.

Front

What is the molar ratio of 2 Mg + O2 -> 2 MgO for O2 to MgO?

Back

1 mol O2 : 2 mol MgO.

Front

How many oxygen atoms are in H3PO4?

Back

There are 4 oxygen atoms in H3PO4.

Front

What is the significance of the limiting reagent in stoichiometry?

Back

The limiting reagent is the reactant that is completely consumed first in a chemical reaction, limiting the amount of product formed.

Front

How do you convert moles to grams?

Back

To convert moles to grams, multiply the number of moles by the molar mass of the substance (grams per mole).