Question

How many moles are in 1.50 grams of ethanol, CH3CH2OH?

Answer 1

CH3CH2OH = 46.068 (molar mass)
1.50g(1 mole / 46.0680) =
0.03256 moles

Answer 2

Answer: The number of moles of ethanol for given amount is 0.0326 moles.

Explanation:

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

We are given:

Given mass of ethanol = 1.50 g

Molar mass of ethanol = 46.07 g/mol

Putting values in above equation, we get:

$\text{Moles of ethanol}=\frac{1.50g}{46.07g/mol}=0.0326mol$

Hence, the number of moles of ethanol for given amount is 0.0326 moles.