Question

What is 1 atomic mass unit equal to?

Answer 1

`1 a.m.u.=1.6726219xx10^(-27) kg`.

Explanation:

1 atomic mass unit (a.m.u.) is the mass of a proton or a neutron which is equal to `1.6726219xx10^(-27) kg`.

The mass of a Hydrogen atom is 1 a.m.u. But, also we can say that the molar mass of a hydrogen is equal to `1g/"mol"` and this is because:

`1.6726219xx10^(-24) gxx6.022xx10^(23)=1.007"g/mol"`

which is close to the mass that you find in a periodic table.