Answer Happy

5-8 needed
5. What is the mass of the solvent in a 25.0 g sample of 0.267 m NaCl solution? 6. What is the molality of a 0.100 M HCIO4 solution if the density is 1.0228 g/ml? 7. What is the vapor pressure of water at 52.00°C when 52.9 g of AgCl is added to 560 g of water? The vapor pressure of water at 52.00°C is 102.1 torr. 8. Water (K = 0.512°C/m and K = 1.86°C/m) usually boils at 100°C and freezes at 0°C. a. If 4.23 g of Kl are added to 89.3 g of water, what will be the new freezing and melting point? b. If the same number of mols of KI and CuCl; are added to 100 g of water, which will cause the largest change in the boiling and freezing point? Why? 9. Acetic acid (K = 3.07 °C/m) normally boils at 117.9°C. If 1.26 g of water is added to 96.0 g of acetic acid, what will the new boiling point be?