Moles and Molar mass

Front

Molar mass is in units of ________.

Back

grams/mole

Front

If 1 mole of water has a mass of 18.02 grams, how many water molecules are there in 18.02 grams of water?

Back

6.02 x 10^23

Front

How many moles of carbon atoms are there in 5g of carbon?

Back

0.42 mol

Front

The molar mass of an element is equal to its...

Back

Atomic mass (from the periodic table)

Front

Which of the following dimensional analysis setups will correctly convert 4.00x10^23 atoms of cobalt to moles of cobalt?

Back

setup A : 0.664 mol Co

Front

Define a mole in terms of particles.

Back

A mole is defined as 6.02 x 10^23 particles (atoms, molecules, etc.).

Front

What is the relationship between moles and mass?

Back

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

Front

How do you calculate the molar mass of a compound?

Back

Add the atomic masses of all atoms in the compound.

Front

What is the molar mass of water (H2O)?

Back

18.02 g/mol.

Front

How many grams are in 2 moles of sodium chloride (NaCl)?

Back

117 g (2 moles x 58.5 g/mol).