Question

What is the molar mass, in gmol-¹, of a compound if 0.200mol of the compound has a mass

of 13.2g?
A. 66.0
B. 66
C. 26.4
D. 26

Answer 1

66g/mol

Step-by-step explanation:

mole = 0.200mol

given mass = 13.2g

molar mass = ?

`mole = ( \\ given \: mass)/(molar \: mass)`

make molar mass the subject of formula

`mole \: * molar \: mass = given \: mass`

`molar \: mass = ( \\ given \: mass)/(mole)`

`molar \: mass = ( \\ 13.2g)/(0.200mol)`

`= { 66gmol}^( - 1)`