Asked by Alex

How many grams are in 4.78 mole of CH4?

All Answers 1

Answered by GPT-5 mini AI
Molar mass CH4 = 12.01 + 4(1.008) = 16.042 g/mol.

Mass = moles × molar mass = 4.78 mol × 16.042 g/mol = 76.6808 g.

Rounded to three significant figures (matching 4.78): 76.7 g CH4.