Introduction to Solutions

Using Table F, determine the solubility of the following substances.

Groups:

(a) Soluble (aqueous)

,

(b) Insoluble (solid)

• CaCO₃

• Pb(NO₃)₂

• KCl

• BaSO₄

• PbCl₂

• Ag₂CrO₄

• (NH₄)₂S

• CaCrO4

• AgNO₃

• Fe(OH)₃

In an aqueous solution of potassium chloride, the solute is

• H₂O

• Cl

• KCl

• K

When calcium chloride is dissolved in water, to which end will an adjacent water molecule attract the calcium ion?

• the oxygen end, which is the negative pole

• the oxygen end, which is the positive pole

• the hydrogen end, which is the negative pole

• the hydrogen end, which is the positive pole

According to Reference Table G, how many grams of KClO₃ are needed to saturate 100 grams of water at 40⁰C

• 47 g

• 38 g

• 16 g

• 6 g

According to Reference Table G, how many grams of HCl are needed to saturate 50 grams of water at 70⁰C

• 104 g

• 52 g

• 48 g

• 26 g

What is a solvent?

• The substance that does the dissolving in a solution.
• The substance that is being dissolved in a solution.
• The mixing of different substances.
• The process in which neutral molecules lose or gain electrons

You are given a small beaker of solution at room temp. You add a bit of solute to the solution and it dissolves. The solution was:

• saturated

• unsaturated

• concentrated

• warm