9/18 Concept Test Questions

1. What is the total concentration of ions in 0.10 M iron(III) sulfate solution?
A) 0.10 M
B) 0.20 M
C) 0.30 M
D) 0.50 M

2. Predict the identity of the precipitate formed when solutions of Na2CO3 and CaCl2 are mixed.
A) Na2CO3
B) CaCl2
C) CaCO3
D) NaCl

3. Identify the compound that is least soluble in water using solubility rules.
A) Pb(NO3)2
B) (NH4)2CO3
C) K2SO4
D) Ca3(PO4)2

4. An aqueous solution of H2SO4 is added to aqueous Ba(OH)2. The reaction is monitored using a conductivity tester. Predict which statement(s) is(are) correct.

I) Both H2SO4 and Ba(OH)2 are strong electrolytes.
II) This is a neutralization reaction.
III) This is a precipitation reaction.
IV) At the neutralization point, the light bulb will glow.

A) II
B) I and II
C) I, II, and III
D) I, II, III, and IV