2*18.01528=36.03056 g
One pound-mole (lbmol) of a substance is equal to the molar mass of the substance in grams.
One mole of ice, which is the same as one mole of water, has a molar mass of approximately 18 grams/mol.
The molar mass of NaNO3 is 85.0 g/mol. Therefore, 1 mole of NaNO3 is equal to 85.0 grams.
No. A mole of hydrogen (in its normal form) weighs 2 grams. A mole of water weighs 18 grams.
Since the molar mass (grams per mole) of H2O is 18.02, the grams of H2O in 4 moles is 72.08g.
In every mole there are only 6.023X1023 molecules irrespective of the compound.
18 grams
0.87 grams water (1 mole H2O/18.016 grams)(1 mole O/1 mole H2O)(6.022 X 1023/1 mole O) = 2.9 X 1022 atoms of oxygen --------------------------------------
4.003 grams
Quite a few! 871 grams water (1 mole H2O/18.016 grams)(2 moles H/1 mole H2O)(6.022 X 1023/1 mole H) = 5.82 X 1025 atoms of hydrogen ========================
That depends on the substance, and on whether you are considering atoms ore molecules. One mole has as many grams as the atomic or molecular mass of the substance. For example, one mole of atomic hydrogen has 1 gram; one mole of molecular hydrogen has 2 grams, one mole water has 18 grams, etc., since those numbers are the corresponding atomic or molecular masses.
The molar mass of C5H12 is 72 grams/mole.