NAME:
GR.11 CHEMISTRY: SOLUTIONS TEST
November 2013
Collegiate
Westgate Mennonite
1. Define immiscible. Give an example.
(2)
2. Use the words solution, solvent and solute in a sentence that clearly shows the meaning
of each of the three words.
(3)
3. What is the concentration of a solution if you dissolve 100g NaCl in 6.4 liters of
water?
(3)
4. How many grams of Na2S are dissolved in 0.500 L of a 1.5 mol/L solution?
(3)
5. What volume of a 1.50 mol/L MgSO4 solution must you start with if you wish to make
200 mL of a 0.250 mol/L solution of MgSO4?
(3)
5. If you start with 30.0 mL of 3.00 M KOH and dilute it to prepare 0.45 M KOH, what
will your final volume be?
(3)
7. Complete the following dissociation (dissolving) equations.
a) Al(NO3)3(s) →
(2)
b) CaI2(s) →
(2)
8.Explain how the solubility of a gas can increase.
(2)
9. a) Explain why solubility of a solid solute may increase or may decrease with
increasing solvent temperature.
(2)
b) Which scenario (increasing or decreasing solubility) is more common?
(1)
10. In a titration, 23.8 ml of 0.100 mol/L NaOH were used to neutralize 24.7 ml
CH3COOH. What is the concentration of the acid?
(3)
12. Answer the following questions using the solubility curve graph:
a) What is the solubility of KNO3 at 50ºC?
(1)
b) What substance has the lowest solubility at 70°C?
(1)
c) If you attempt to dissolve 60.0 g NH4Cl in 100 mL of water at 50°C, is the
solution saturated, unsaturated or supersaturated?
(1)
d) at what temperature would 55 g of NaNO3 dissolve completely in 100 g of water?
(1)
e) why does the graph only begin at 0°C?
(1)
13. Water is not able to dissolve oil. Explain this statement in terms of polarity and
intermolecular forces. Feel free to draw diagrams in your explanation.
(2)
14. Water is able to dissolve proteins. Explain this statement in terms of polarity and
intermolecular forces. Feel free to draw diagrams in your explanation.
(2)
15. Explain what an emulsifier does. Give an example.
(2)
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