#3 Mole, stoichiometry, limiting reactants test

How many particles are there in one mole?

How many cookies are in 1 dozen cookies?

• 6 cookies

• 12 cookies

• 24 cookies

How many Al atoms are in 1 dozen Al atoms?

• 6 Al atoms

• 12 Al atoms

• 24 Al atoms

How many Al atoms are in 1 mole of Al atoms?

• 6.02 X 10^23 atoms

• 12 atoms

• 1,000 atoms

Fill in the blank: 1 mole of H2O contains ______ H2O molecules.

• 6.02 x 10^23

• 6.02 x 10^22

• 1 x 10^23

What is the number of NaCl "molecules" in 1 mole of NaCl?

• 6.02 x 10^21

• 6.02 x 10^22

• 6.02 x 10^23

• 6.02 x 10^24

Number of atoms in 0.500 mole of Al

• 500 Al atoms

• 6.02 x 10^23 Al atoms

• 3.01 x 10^23 Al atoms

Number of moles of S in 1.8 x 10^{24} S atoms

• 1.0 mole S atoms

• 3.0 mole S atoms

• 1.1 x 10^48 mole S atoms

The mass of 1 mole of Mg atoms is ______ g.

• 1 mole of Mg atoms has a mass of 24.305 g.

• 1 mole of Mg atoms has a mass of 20.000 g.

• 1 mole of Mg atoms has a mass of 26.000 g.

• 1 mole of Mg atoms has a mass of 30.000 g.

Find the molar mass of Br atoms (usually we round to the tenths place).

• 79.9 g/mole

• 118.7 g/mole