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Publicado: 15 de abril de 2011
Chemistry 11 Quiz: Name: _____________________
1) Explain why chemical compounds tend to dissolvemore quickly in hot solvent than in cold solvent.
2) Give an example of two liquids that are immiscible.
3) The pressure at the bottom of a lakeis 2.35 atm. If water saturated with oxygen (concentration 0.34 g/L) is carried by a current to to a depth where the solubility of oxygen is 0.21g/L, what is the pressure of the water.
4) How can you make a saturated solution from an supersaturated solution?
5) How can you make asupersaturated solution from a saturated solution?
6) How can you make an unsaturated solution from a saturated solution?
7) What is the molarity of asolution made when you dilute 35 grams of sodium carbonate to a volume of 3,400 mL?
8) Explain how you would make 450 mL of a 0.25 M calciumchloride solution.
9) If I make a solution by adding 83 grams of sodium hydroxide to 750 mL of water…
a) What is the molality of sodium hydroxide inthis solution?
b) What is the percent by mass of sodium hydroxide in this solution?
c) What is the mole fraction of sodium hydroxide in thissolution?
10) If I make a solution by adding water to 35 mL of methanol (CH3OH) until the final volume of the solution is 275 mL…
a) What isthe molarity of methanol in this solution? (The density of
methanol is 0.792 g/mL)
b) What is the percent by volume of methanol in this solution?
1) Explain why chemical compounds tend to dissolvemore quickly in hot solvent than in cold solvent.
2) Give an example of two liquids that are immiscible.
3) The pressure at the bottom of a lakeis 2.35 atm. If water saturated with oxygen (concentration 0.34 g/L) is carried by a current to to a depth where the solubility of oxygen is 0.21g/L, what is the pressure of the water.
4) How can you make a saturated solution from an supersaturated solution?
5) How can you make asupersaturated solution from a saturated solution?
6) How can you make an unsaturated solution from a saturated solution?
7) What is the molarity of asolution made when you dilute 35 grams of sodium carbonate to a volume of 3,400 mL?
8) Explain how you would make 450 mL of a 0.25 M calciumchloride solution.
9) If I make a solution by adding 83 grams of sodium hydroxide to 750 mL of water…
a) What is the molality of sodium hydroxide inthis solution?
b) What is the percent by mass of sodium hydroxide in this solution?
c) What is the mole fraction of sodium hydroxide in thissolution?
10) If I make a solution by adding water to 35 mL of methanol (CH3OH) until the final volume of the solution is 275 mL…
a) What isthe molarity of methanol in this solution? (The density of
methanol is 0.792 g/mL)
b) What is the percent by volume of methanol in this solution?
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