Like Dissolves Like Practice
Using your knowledge of the “like dissolves like” principle of solubility, determine which compound will dissolve best in each of the following problems. Explain your reason for having made this determination.
1)Liquid: methanol (CH3OH)
Compounds: carbon diselenide and oxygen dichloride
2)Liquid: carbon disulfide
Compounds: methanol (CH3OH) and lithium chloride
3)Liquid: water
Componds: carbon tetrachloride and ammonia
4)Liquid: isopropanol (C3H8O)
Compounds: water and methane
Concentration Worksheet
1)Explain why chemical compounds tend to dissolve more 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 lake is 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 0.21 g/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 a supersaturated solution from a saturated solution?
6)How can you make an unsaturated solution from a saturated solution?
7)What is the molarity of a solution 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 calcium chloride solution.
Concentration Worksheet
1)Explain why chemical compounds tend to dissolve more 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 lake is 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 0.21 g/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 a supersaturated solution from a saturated solution?
6)How can you make an unsaturated solution from a saturated solution?
7)What is the molarity of a solution 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 calcium chloride solution.
Molarity Practice Worksheet
Find the molarity of the following solutions:
1)0.5 moles of sodium chloride is dissolved to make 0.05 liters of solution.
2)0.5 grams of sodium chloride is dissolved to make 0.05 liters of solution.
3)0.5 grams of sodium chloride is dissolved to make 0.05 mL of solution.
4)734 grams of lithium sulfate are dissolved to make 2500 mL of solution.
5)6.7 x 10-2 grams of Pb(C2H3O2)4 are dissolved to make 3.5 mL of solution.
6)I have two solutions. In the first solution, 1.0 moles of sodium chloride is dissolved to make 1.0 liters of solution. In the second one, 1.0 moles of sodium chloride is added to 1.0 liters of water. Is the molarity of each solution the same? Explain your answer.
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