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General Properties of Aqueous Solutions

1- Do Strong electrolytes (in solution) conduct electricity well?

2- Determine if the following are soluble or insoluble in water
PbCl2
PbNO3
PbS
Na2S
BaCO3
Ba(OH)2
LiOH
AgCl
AgC2H3O2
AgOH

3-Write the balanced net ionic equation for the following reaction:
Na2SO4 + Pb(NO3)2-->

4-Write the balanced net ionic equation for the following reaction:
Mg(OH)2 + HCl -->

5-What is the net ionic equation for the following reaction?
AgNO3(aq) + Na2SO4(aq) -->

6-What are the units for molarity?

7-To analyze for barium in an unknown white powder, an excess of sodium sulfate solution was added to a 0.643 g sample of the powder dissolved in water. A white precipitate of BaSO4 was isolated, dried, and found to weigh 0.438 g. What is the mass percent of Ba in the white powder? Round to one decimal place, do not include the percent sign in your answer.

8- How many grams of KCl are required to make .75 L of 0.48 M solution? Round to one decimal place

9-What is the molarity of a solution made by dissolving 481.8 g of sucrose (C12H22O11) up to 1.35 L of water? Round to two decimal place, do not include units in your answer.

10-How many grams of NaCl would be found in 1.79 L of 2.35 M solution? Round to one decimal place, do not include units.

11- How many grams of NaCl are found in 2.1 L of 2.1 M NaCl solution? Round to one decimal place, do not include units in your answer.

12-What amount (ml) of 9.5 M stock solution must be diluted to make 282.2 ml of 2.3 M solution? Round to one decimal place, do not include units.

13-What is the molarity of a solution made by mixing 227.5 ml of 1.5 M NaCl with 366.1 ml of 4.3 M NaCl? Round to one decimal place, do not include units.

14-Calculate the volume (ml) of a 0.175 M CuSO4 solution that would react with 7.4 g of zinc. Round to one decimal place, do not include units.

15-Oxalic acid (H2C2O4) can be used to remove rust according to the following balanced equation:
Fe2O3 + 6H2C2O4 --> 2Fe(C2O4)33- +3H2O + 6H+
Calculate the number of grams of rust that can be removed by 5.00 x 102 ml of a 0.122M solution of oxalic acid.
Round to one decimal place, do not include units in your answer.

16-A 253.3 ml sample of solution contains 24.6 g of CaCl2. Calculate the molar concentration of calcium ion in this solution. Round to two decimal places, do not include units.

17-A 423 ml sample of solution contains 29.6 g of CaCl2. Calculate the molar concentration of chloride ion in this solution. Round to two decimal places, do not include units.

18-How many grams of water are formed when 46.2 g of hydrogen are consumed in an excess of oxygen? Round to two decimal places, do not include units.

Solution Preview

1- Do Strong electrolytes (in solution) conduct electricity well?
Yes since they are completely dissociated into ions.

2- Determine if the following are soluble or insoluble in water
PbCl2 - no
PbNO3 - yes
PbS - no
Na2S - yes
BaCO3 - no
Ba(OH)2 - yes
LiOH - yes
AgCl - no
AgC2H3O2 - no
AgOH - no

3-Write the balanced net ionic equation for the following reaction:
Na2SO4 + Pb(NO3)2--> PbSO4+2NaNO3

4-Write the balanced net ionic equation for the following reaction:
Mg(OH)2 + 2HCl --> MgCl2+2H2O

5-What is the net ionic equation for the following reaction?
AgNO3(aq) + Na2SO4(aq) --> 2Ag+ +SO42- →Ag2SO4

6-What are the units for molarity?
mol/L.

7-To analyze for barium in an unknown white powder, an excess of sodium sulfate solution was added to a 0.643 g sample of the powder dissolved in water. A white precipitate of BaSO4 was isolated, dried, and found to weigh 0.438 g. What is the mass percent of Ba in the white powder? Round to one decimal place, do not include the percent sign in your answer.

Based on mass conservation of Ba in the ...

Solution Summary

The solution discusses the general properties of aqueous solutions.

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