# chemistry

posted by
**Veronica**
.

If i have 21 grams of hydrogen, how many atoms of hydrogen do i have?

There are 6.023 x 10^23 atoms in 1 gram of hydrogen. So how many are in 21 g hydrogen?

posted by
**Veronica**
.

If i have 21 grams of hydrogen, how many atoms of hydrogen do i have?

There are 6.023 x 10^23 atoms in 1 gram of hydrogen. So how many are in 21 g hydrogen?