How many moles are in 38.4 grams of ethane (C2H6)?

Answer 1

To calculate the number of moles in 38.4 grams of ethane (C2H6), we need to use the formula:

moles = mass/molar mass

The molar mass of ethane (C2H6) is:

2(12.01 g/mol) + 6(1.01 g/mol) = 30.07 g/mol

Substituting the values, we get:

moles = 38.4 g/30.07 g/mol

moles = 1.28 mol

Therefore, there are 1.28 moles of ethane (C2H6) in 38.4 grams.