Question

what is the formula unit mass​

Answer 1

Answer:

Formula unit mass of a substance is the sum of the atomic masses of all the atoms present in the formula of a respective compound.

Let us calculate the formula unit mass of NaCl. we will find it out by following process

We know atomic mass of Na is 23 and that of Cl is 35.5

Formula unit mass of NaCl is 1 X 23 + 1 X 35.5 = 58.5 u

Answer 2

Formula unit mass of a substance is the sum of the atomic masses of all the atoms present in the formula of a respective compound.