Final Review Ch. 18 (math)

 What is the molarity of a solution containing 9.0 moles of solute in 500.0 mL of solution?
 18 M
 How many mL of 3 M HCL are needed to make 300 mL of 0.1M HCL?
 10mL
 If 2.0 mL of 6.0M HCK is used to make a 500.0-mL aqueous solution, what is the molarity of the dilute solution?
 0.024 M
 What is the maximum amount of KCL that can dissolve in 200g of water? (solubility of KCL is 34g/100g of water at 20 degrees Celsius)
 68g
 If the solubility of a gas in water is 4.0g/L when the pressure of the gas above the water is 3.0 atm, what is the pressure of teh gas above the water when the solubility of the gas is 1.0g/L?
 0.75 atm
 To increase the solubility of a gas at constant temperature from 0.85 g/mL, at 1.0 atm, to 5.1 g/mL, the pressure would have to be increased to ___.
 6.0 atm
 What is the molarity of a solution containing 9.0 moles of solute in 500.0 mL of solution?
 18M
 What is the number of mole of solute in 250mL of a 0.4M solution?
 0.1 mol
 What is the molarity of a solution containing 8 grams of solute in 500mL of solution? (gram formula mass of solute = 24g)
 0.67 M
 How many mL of 3M HCL are needed to make 300 mL of 0.1M HCL?
 90mL
 If 2.0 mL of 6.0M HCL is used to make a 500.0-mL aqueous solution, what is the molarity of the dilute solution?
 0.83 M
 If the percent by volume is 2.0% and the volume of solution is 250 mL, what is the volume of solute in solution?
 5.0 mL
 If the percent (mass/volume) for the solute is 4% and the volumer of the solution is 750mL, what is the mass of soluter in solution?
 30 g
 What si the colume of alcohol present in 200.0 mL of a 55% (v/v) solution of alcohol?
 110 mL
 What is the molality of a solution containing 9.0 moles of soluter in 2.4 kg of solvent?
 3.8M
 What is the number of kilograms of solvent in a 0.70 molal solution containing 5.0 grams of solute? (gram formula mass of solute = 30g)
 0.24 kg
 What is the boiling point of a solution that contains 3 moles of KBR in 2000g of water? (Kb = 0.512 degrees Celsius/m;gram formula mass of water = 18 g)
 101.5 degrees Celsius
 What is the freezing point of a solution that contains 0.5 moles of NaI in 500g of water? (Kf = 1.86 degrees celsius/mole; gram formula mass of water = 18g)
 -3.72 degrees celsius
 What is the boiling point of a solution of 0.1 mole of glucose in 200 mL of waetr? (Kb = 0.50 degrees celsius/mole)
 100.25 degrees celsius
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