Question

Write the meaning of formula of unite mass calculate the formula unite mass of a compound N2S2O3

Answer 1

N as Nitrogen, S as Sulphur and O as Oxygen.
And the mass of N2S2O3 is 140u.
...hope you got it.

Answer 2

Answer:

Formula unit mass is the sum of the atomic masses of all atoms present in a formula unit of a compound. It is calculated by adding the atomic masses of all the atoms present in one formula unit. Formula unit mass of

(NH4)2so4 = 14x2 + 4x2 + 32 + 16x4 = 132 u.