# What is the formula mass for C_5H_10N?

Feb 22, 2016

The relative formula mass of $\text{C"_5"H"_10"N}$ is $84.14$.

#### Explanation:

$\text{C"_5"H"_10"N}$

Determine the relative formula mass by multiplying the subscript for each element by the relative atomic mass $\left(\text{A"_"r}\right)$ found on the periodic table. Relative atomic mass is dimensionless

Relative Atomic Masses

$\text{C} :$ $12.011$
$\text{H} :$ $1.008$
$\text{N} :$ $14.007$

Relative Formula Mass

$\left(5 \times 12.011\right) + \left(10 \times 1.008\right) + \left(1 \times 14.007\right) = 84.14$ rounded to two decimal places (10xx1.008)=10.08)