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Mole concept practice question, Question 1: Find the molecular mass of the H2O., Question 2: Find the molecular mass of the H2SO4., Question 3: Calculate the mass of 0.5 moles of the H2O2., Question 4: Calculate the mass of 2 moles of N2., Question 5: Find the number of atoms in 8g of O2., Question 6: Find the number of atoms in 46g of Na., Question 7: Find the number of moles present in 24.088X10^23 particles of carbon dioxide, Question 8 How many atoms of oxygen are present in 300 grams of CaCO3?, Question 9 : Calculate the number moles of magnesium in 0.478g of magnesium ?, Question 10: Find the number of oxygen atoms in 88g of CO2?