How many hydrogen atoms are in 1 kg?

Answer 1

Since we know the grams, 1kg or 1000g, we simply divide by the molar mass (1.0079g/mole) to get 992.2 moles of hydrogen. We then multiply by Avagadro's number, 6.0221415x1023. This gives us 5.975x1026 atoms in a 1kg sample of hydrogen.

Answer 2

1.660 538 782(83) × 10−27kg

Otherwise known as one Atomic Mass unit.

Answer 3

1.008 amu or 1.674x10-24 grams.

Answer 4

The atomic weight of hydrogen is one when rounded, but actually it's average atomic weight is 1.00794.

Answer 5

1.0079 grams/mole

Answer 6

one mole of hydrogen weighs one mole