A patient receiving a thiazide diuretic is also prescribed a potassium supplement containing 8 mEq of potassium as potassium chloride in each unit dose. How many milligrams of potassium chloride are present in each unit dose of the potassium supplement? (Atomic weights of K and Cl are 39 and 35.5, respectively) 1. How many milligrams of sodium citrate (Na,C&HO) are in 3 moles? (MW Na-23 C-12, H-1, O-16) 2. 3. How many milliequivalents of sodium citrate (Na,CH,0-) are in 0.3 moles? (MW Na-23,C-12,H-1,0-16) 80. The vapor pressure of pure water at 30°C is 31.8 mm Hg. Calculate the vapor pressure when 50 g of maltose (non-electrolyte) (MW 343) is added to 300 mL of water at this temperature. 4. 5. Calculate the molality of a of 25% solution of sucrose (MW-342)-The density of the solution is 1.1 What is the change in freezing point (in °C) of a solution prepared by dissolving 30 g of aluminum chloride (AICI3, Mw = 133) in 550 mL of water? (Kr= 1.86 deg-kg/mol). 6. 7. Sulindac (weak acid) is a non-steroidal anti-inflammatory drug with a pKa of 4.2. What is the pH of a solution containing 0.05M sulindac? 8. What is the pH of a 0.005 M solution of sodium hydroxide (NaOH)? Sodium chloride (MW 58.5) is often used in road and sidewalk treatment during the winter to prevent ice formation. How many grams of sodium chloride should be added to 2 Kg of water to lower the freezing point by 2°C? The cryoscopic constant of water is 1.860 deg-kg/mole. 9. 10. Convert 0.5% CaCl2 solution (MW = 110) into mEq/L.