Question

In: Chemistry

For which one of the pairs of acids and bases does the following represent the net...

For which one of the pairs of acids and bases does the following represent the net ionic equation?

H3O+ +OH- ___ 2H2O a NaOH, HBr b CH3COOH, Ca(OH)2 c HNO3, Mg(OH)2 d CH3COOH, Cu(OH)2 e CH3COOH, Cr(OH)3

Solutions

Expert Solution

                                                        H3O+ +OH-       -------->       H2O + H2O

a) HBr + NaOH → NaBr + H2O

Net ionic: H+ + OH- → H2O

b) Ca(OH)2 + 2 CH3COOH → 2 H2O + Ca(CH3COO)2

Net ionic: 2 OH- (aq) + 2 H+ (aq) --> 2 H2O (l)

c) 2 HNO3 + Mg(OH)2 → 2 H2O + Mg(NO3)2

Net ionic: 2 OH- (aq) + 2 H+ (aq) --> 2 H2O (l)

d) Cu(OH)2 + 2CH3COOH → Cu(CH3COO)2 + 2H2O

Net ionic: 2 OH- (aq) + 2 H+ (aq) --> 2 H2O (l)

e) Cr(OH)3 + 3CH3COOH → Cr(CH3COO)3 + 3H2O

Net ionic: 3 OH- (aq) + 3 H+ (aq) --> 3 H2O (l)

So

a) NaOH, HBr

This pair represents the above net ionic equation.

queen_honey_blossom answered 2 years ago
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