Unit 7 Vocabulary - Mole and Stoichiometry

Calculation of quantities in chemical reactions involves which of the following?

• Actual yield

• Stoichiometry

• Empirical formula

• Dimensional analysis

Tags

NGSS.HS-PS1-7

The reactant that is not completely used up in a reaction is known as?

• Limiting reagent

• Theoretical yield

• Percent yield

• Excess reagent

What is the smallest unit of a substance that shows the exact number of atoms of each element?

• Molar mass

• Molecular formula

• Molar volume

• Theoretical yield

The smallest unit of a substance (i.e., atoms, molecules, ions) is referred to as?

• Actual yield

• Avogadro's number

• Representative particle

• Empirical formula

Which reactant is used up first in a reaction?

• Theoretical yield

• Limiting reagent

• Excess reagent

• Actual yield

Identify the formula with the lowest whole-number ratio of elements in a compound (subscripts are reduced).

• Molar mass

• Empirical formula

• Actual yield

• Mole ratio

What is the ratio between the numbers of moles of any two substances in a balanced chemical equation (derived from the coefficients in the balanced equation)?

• Actual yield

• Molar mass

• Mole ratio

• Percent yield

Amount of substance containing the same number of particles, atoms, molecules, ions, or other items. One mole (mol) equals the number of atoms in exactly 12 grams of Carbon-12 atoms.

• Avogadro's number

• Empirical formula

• Mole

• Molar mass

The measured amount of a product actually obtained from a reaction.

• Empirical formula

• Percent yield

• Actual yield

• Theoretical yield

Tags

NGSS.HS-PS1-7

Mass in grams of 1 mole of a substance.

• Molar mass

• Mole ratio

• Molar volume

• Avogadro's number