STOICH Review

Front

How many moles are in 6.02 x 10^23 molecules of H2O?

Back

1 mole

Front

How many moles of Na contain 1.45 x 10^21 atoms of Na?

Back

0.00241 moles

Front

What is Avogadro's number?

Back

6.02 x 10^23

Front

What is the conversion factor to determine how many molecules are in 4.00 moles of glucose, C6H12O6?

Back

6.02 x 10^23 molecules/mole

Front

How many moles are in 4.5 x 10^24 atoms of lithium?

Back

7.47 moles

Front

Define a mole in chemistry.

Back

A mole is a unit that measures the amount of substance, defined as 6.02 x 10^23 particles (atoms, molecules, etc.).

Front

What is the relationship between moles and molecules?

Back

1 mole of any substance contains 6.02 x 10^23 molecules of that substance.

Front

How do you convert atoms to moles?

Back

Divide the number of atoms by Avogadro's number (6.02 x 10^23).

Front

What is the formula to calculate moles from mass?

Back

Moles = Mass (g) / Molar Mass (g/mol).

Front

What is molar mass?

Back

Molar mass is the mass of one mole of a substance, usually expressed in grams per mole (g/mol).