Question

how many moles of hydrogen are 60 grams of water

Answer 1

Molar mass, 60 grams of H20.
The molar mass of H20 is 18g/mol

Answer 2

Do you think you know what to do next? remember h20 has 2 Hydrogen's for every H20 molecule

Answer 3

3. moles (due to sig figs).
Use the periodic table to find out how much 1 mole of H2O (water) is and you should get about 18.01 g.

Answer 4

Here is the calculation:
\[60 g H_2O *\frac{ 1 mole H_2O }{ 18.02 g } = 3. g H_2O\]