Question

What is the formula mass of a compound with 2 carbon atoms and 3 oxygen atoms, in atomic mass units?

Answer 1

Answer: 72.019amu

Explanation:

Answer 2

Given:

A compound with 2 carbon atoms and 3 oxygen atoms

To Find:  Formula mass of the compound

Solution:

The formula mass of a compound is the sum of the atomic masses of each element present in the given formula of the compound.

Since there are 2 carbon atoms and 3 oxygen atoms in the given compound, therefore, its formula will be $\[{C_2}{O_3}\]$.

Thus, the formula mass can be given as:

$\[{C_2}{O_3}:\,2 \times 12 + 3 \times 16 = 72\,\,amu\]$

Hence, the formula mass of a compound with 2 carbon atoms and 3 oxygen atoms, in atomic mass units is 72 a.m.u.