Question

How many grams are in 3.7 moles of NA2O?​

Answer 1

Na₂O has a molecular mass of (2 x 23.0) + 16 = 62. One mole of any substance is its molecular mass in grams, so if 1 mole of Na₂O = 62.0-g, then 5 moles would be 310-g ...(62.0g/mol x 5-mol) = 310-g Na₂O