Question

One mole (mol) of ethanol (C2H60) has a mass of 46.0684 g.

How many moles of ethanol are in an 18.0 g sample?

Need to see how the calculation was done.

Answer 1

the number of moles of ethanol is 18 g sample is 0.390 mol

Step-by-step explanation:

The computation of the number of moles of ethanol is 18 g sample is shown below:

= Mass of ethanol sample ÷ molar mass of ethanol

= 18 g ÷ 46.064=84 g

= 0.390 mol

Hence, the number of moles of ethanol is 18 g sample is 0.390 mol