How many moles of H2O are in 3.00L of water? (d=1.00g/mL)
2 answers
How many grams? That's mass = volume x density. Substitute and solve for grams. Then mols = grams/molar mass.
(3.0L H20)(1000g/L)(1 mol/18g)
= 166.7 mol H2O
= 166.7 mol H2O