1.The molality of a solution prepared by dissolving 29.5 g of H2SO4 in 2.00L of water

2. The mole fraction of each component of a solution prepared by dissolving 2.00 g of nicotine, C10H14N2 , in 77.5 g of CH2Cl2

3. Dissolve 0.770 mol of citric acid, C6H8O7, IN 1.00 kg of water

4. Dissolve 0.170 mg of KBr in 5.00 mL of water

5. Dissolve 5.80 g of aspirin, C9H8O4, in 145g of dichloromethane, CH2Cl2