General Chemistry Tutorial Questions AWS

General Chemistry Tutorial Questions 1. What is the mass in grams of 0.68 mol of KMnO4? 2. What is the number of oxygen atoms in 8.18 g of Ba(NO3)2? 3. What is the mass percent of H in NH4HCO3 (ammonium bicarbonate)? 4. What is the mass fraction of O in UO2(SO4)? 5. The formula for iron rust is Fe2O3∙4H2O. How many mols of rust are in 45.2 kg? How many mols of Fe2O3 are present? How many grams of iron? 6. A sample of 0.600 mol of a metal M reacts completely with excess fluorine to form 46.8g of MF2. How many mols of F are in this sample? How many grams of the metal are in this sample? What element is M? 7. How many grams of solute are present in 185.8 mL of 0.267 M calcium acetate (Ca(C2H3O2)2)? 8. How many grams of solid barium sulfate form when 35.0 mL of 0.160 M barium chloride reacts with 58.0 mL of 0.065 M sodium sulfate? (Aqueous sodium chloride also forms)