Front

What are the units for molar mass?

Back

grams per mole

Front

How many molecules are in 3.6 grams of NaCl?

Back

3.7x10^22

Front

How many molecules are in 25 mol of NaCl?

Back

1.51x10^25

Front

Which represents the greatest number of atoms? 50.0 g Cs, 50.0 g Co, 50.0 g Ca, 50.0 g Cu

Back

50.0 g Ca

Front

How to convert 4.00x10^23 atoms of cobalt to moles of cobalt?

Back

0.664 mol Co

Front

What is the Avogadro's number?

Back

6.022 x 10^23 particles/mol

Front

Define molar mass.

Back

The mass of one mole of a substance, typically expressed in grams per mole.

Front

What is the formula to calculate the number of moles?

Back

Number of moles = mass (g) / molar mass (g/mol)

Front

How many grams are in 2 moles of NaCl? (Molar mass of NaCl = 58.44 g/mol)

Back

116.88 g

Front

What is the relationship between moles and molecules?

Back

1 mole of any substance contains Avogadro's number of molecules.