The relative atomic mass of hydrogen is 1.007.
MOLAR MASS OF AN ELEMENT = RELATIVE ATOMIC MASS * MOLAR MASS CONSTANT(1g/mol)
for HYDROGEN,
MOLAR MASS of Hydrogen = 1.007*1g/mol
MOLAR MASS of Hydrogen= 1.007 g/mol
For H2: 1.007 x 2 = 2.014 grams per mole
