How many molecules are present in one in one gram of hydrogen?

Options

A. `6.022 xx 10^(23)`
B. `6.022 xx 10^(22)`
C. `3.01 xx 10^(23)`
D. `3.0125 xx 10^(-12)`

Answer

C

Explanation

2 g of `H_(2) = 6.022 xx 10^(23)`
1 g of `H_(1) = 1.2 xx 6.022 xx 10^(23)`
`=3.011 xx 10^(23)` molecules