If 3.00 moles of #H_2O# are produced, how many grams of hydrogen gas are used?
If the equation is
and if you balance it,
n = number of moles
m = mass of substance
M = molar mass (equivalent to atomic weight on the periodic table)
The mole ratio between
So, if 1 mole of
then 3.00 moles of
You now know that Hydrogen gas has 6.00 moles. (n)
Your next step is to find the molar mass (M) of hydrogen (
Since you have found your number of moles (n) and molar mass (M) for hydrogen, your final step is to determine the mass (m).
Looking back at the
The mass of hydrogen gas is:
m = 1.00 g/mol
Therefore 6.00 grams of hydrogen gas is being used.