Balanced equation for salts prepared from acid or base

[Mitchtwitchita]

Hey Guys, I seem to be having some problem with this question. Can anybody help me out?

Each of the following salts can be prepared from an acid and a base. Write the balanced molecular equation and net ionic equation for the preparation for each. Indicate states of the reactants and the products [(aq), (s), (l)]. Review solubility rules if necessary to determine the solubility of reactants.

(a) Fe(NO3)3 (aq) (b) LiBr (aq) (c) KHCO3 (aq)

For (a): 3HNO3 (aq) + Fe(OH)3 (s) > Fe(NO3)3 (aq) + 3H2O (l)
Ionic Equation: 3H2+(aq) + Fe(OH)3 (s) > Fe3+ (aq) + 3H2O (l)

For (b): HBr (aq) + LiOH (aq) > LiBr (aq) + H20 (l)
Ionic Equation: H2+ (aq) + OH- (aq) > H2O (l)

For (c): H2CO3 (aq) + KOH (aq) > KHCO3 (aq) +H2O (l)
Ionic Equation: H2+ (aq) + OH- (aq) > H2O (l)

I'm sure that these are incorrect, can anyone set me on the right path? Please.

 

[eli64]

For (a): 3HNO3 (aq) + Fe(OH)3 (s) > Fe(NO3)3 (aq) + 3H2O (l)
Ionic Equation: 3H2+(aq) + Fe(OH)3 (s) > Fe3+ (aq) + 3H2O (l)

QUOTE]

the dissociation of HNO3 in the ionic equation is H+(aq) + NO3-(aq)
in the net ionic should be 3H+ + Fe(OH)3 (s) etc...

- same for b)

- same for c) except...

H2CO3 is a weak acid, some books tell you not to dissociate it in the ionic equation because of this so
H2CO3(aq) + OH-(aq) ----> HCO3-(aq) + H2O (l)


however, experimentally, with a strong base like KOH, you would probably also get K2CO3too and have a mixture of products

H2CO3(aq) + 2KOH(aq) ----> K2CO3(aq) + H2O(l)
net ionic is...

 

[Blueshift5]

Your equations seem to be correct based on the information provided. However, it is always a good idea to double check your work and make sure the charges are balanced on both sides of the equation. Additionally, you can use solubility rules to determine if the products are actually soluble in water or if they will form a precipitate. Overall, your equations look accurate and you seem to have a good understanding of how to prepare salts from acids and bases. Keep up the good work!