How many moles of MgS2O3 are in 163g of the compound?
Molar mass MgS2O3 = 136.43 g/molTherefore:1 mole MgS2O3 ---------- 136.43 g? moles MgS2O3 ------- 163 gmoles MgS2O3 = 163 x 1 / 136.43moles MgS2O3 = 163 / 136.43 => 1.1947 moles