Calculate which of the following contains the largest number of moles at STP (molar…
CHEMISTRY · Single correct · A Level · Chemistry · Amount of substance · Amount of substance
Problem
Calculate which of the following contains the largest number of moles at STP (molar gas volume at STP = 22.7 dm3):
(1) 2.00 g of magnesium
(2) 230 cm3 of oxygen
(3) 100 cm3 of HCl with a concentration of 1 mol dm-3
(4) 9 g of water.