Question

What is the relative molecular weight of `"H"_2"SO"_4` ?

Answer 1

For finding the molecular mass , you need to calculate the sum of masses of different elements multiplies by their number of atoms in one molecule of its compound.

`=> 2xx"Mass of hydrogen" + "Mass of sulphur" + 4xx"Mass of oxygen"`

Here , Mass of one hydrogen atom `=1u`.

Mass of one sulphur atom `=32u`.

Mass of one oxygen atom `=16u`.

We get , Mass of one molecule of `H_2SO_4`

`=> 2xx1 + 32 + 4xx16`

`=> 2 + 32 + 64`

`=> 98u`