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Write the dissolution reaction for the ionic solids below. (Use the lowest possi

ID: 958043 • Letter: W

Question

Write the dissolution reaction for the ionic solids below. (Use the lowest possible coefficients. Include states-of-matter under the given conditions in your answer.)

1. Fe(NO3)3
2. Na2CO3

The two solutions, when mixed, will have two cations and two anions.
(c) Based on your lab results, enter the cation and anion for which a precipitate will form. (Separate substances in a list with a comma.)

(d) Write the net precipitation reaction that occurs. (Use the lowest possible coefficients. Include states-of-matter under the given conditions in your answer.)

Explanation / Answer

a.

Fe (NO3)3 (s) + H2O(l) ------ > Fe 3+ (aq) + 3NO3-(aq)

b.

Na2CO3(s) + H2O(l) ------ > 2 Na+ (aq) + CO3-2(aq)

When these two solutions are mixed there are following ions are present :

Cations: Fe 3+ (aq); Na+ (aq) ,

Anions: 3NO3-aq), CO3-2(aq)

Fe 3+ (aq) reacts with CO3^2- and form solid Fe2(CO3)3

NET REACTION:

Fe 3+ (aq) + CO3^2- (aq) ----- > Fe2(CO3)3 (s)