Question

the number of moles of ethyne that have the same mass as that of 2 moles of carbon dioxide is

Answer 1

here is ur answer.........

Answer 2

Answer: Number of moles of ethyne will be 3.384 moles.

Explanation: We are given that the masses of ethyne and carbon dioxide is same. So, to calculate the mass, we use the formula:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$ ....(1)

Molar mass of carbon dioxide = 44 g/mol

$2mol=\frac{\text{given mass}}{44g/mol}$

Mass of carbon dioxide = 88 grams

As the mass of ethyne is same as that of carbon dioxide, so

Mass of ethyne = 88 g

Molar mass of ethyne = 26 g/mol

To calculate moles, we put the values in equation 1, we get:

$\text{Moles of ethyne}=\frac{88g}{26g/mol}=3.384moles$