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 balanced chemical equation?

Back

A balanced chemical equation has equal numbers of each type of atom on both sides of the equation, reflecting the law of conservation of mass.

Front

How do you balance a chemical equation?

Back

To balance a chemical equation, adjust the coefficients of the reactants and products until the number of atoms of each element is the same on both sides.

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What is the mole concept?

Back

The mole is a unit in chemistry that represents 6.022 x 10²³ particles (atoms, molecules, ions, etc.). It is used to convert between the number of particles and the amount of substance in grams.

Front

How do you calculate the molar mass of a compound?

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To calculate the molar mass, sum the atomic masses of all the atoms in the compound's formula.

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

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Coefficients indicate the relative number of moles of each substance involved in the reaction.

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What is the relationship between moles and grams?

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The relationship is given by the formula: grams = moles x molar mass.

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How do you determine the limiting reactant in a chemical reaction?

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The limiting reactant is the substance that is completely consumed first, limiting the amount of product formed. It can be determined by comparing the mole ratios of the reactants used.

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What is the theoretical yield?

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The theoretical yield is the maximum amount of product that can be produced from a given amount of reactants, calculated using stoichiometry.

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What is the actual yield?

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The actual yield is the amount of product that is actually obtained from a chemical reaction, which is often less than the theoretical yield.