Moles Review for Stoichiometry

Which quantity is equivalent to 39 grams of LiF

1.5 moles

How many molecules are in 0.25 mole of CO?

1.5 x 10^23

What is the number of moles of N2(g) that contains 9.03 x 10^23

1.50

The total number of molecules in 34.0g of NH3 is equal to

2.00 x 6.02 x 10^23

What is the total mass of 3.01 x 10^23 atoms of helium gas?

2.00g

What is the total number of atoms contained in 80g of neon?

2.4 x 10^24

Approximately how many atoms are there in 3.0 moles of Al?

3(6.0 x 10^23)

What is the total mass in grams of 0.75 mole of SO2

48g

What is the total number of molecules of SO2 in a 0.10-mole sample of SO2?

6.0 x 10^22

What is the approximate total number of atoms in 1.0 mole of lithium?

6.0 x 10^23

A 1.0-mole sample of krypton gas has a mass of

84g

How many oxygen molecules are in 3.36 of gas at STP?

9.03 x 10^22

The sum of the atomic masses of the atoms in one molecule of C3H6Br2 is called the

Formula mass