2. For each of the following, write the hydrolysis reaction...

2. For each of the following, write the hydrolysis reaction with water, identify the Brønsted-Lowry acid and base, and identify the conjugate acid/base pairs. a. H2CO3 H2CO3 + H2O -> b. NH3 NH3 + H2O -> NH4+ + OH- NH4+ is the conjugate acid of NH3 c. HNO2 HNO2 + H2O -> H3O+ + NO2- NO2- is the conjugate base of HNO2 d. C5H5N C5H5N + H2O -> e. H2S H2S + H2O ->

Transcript

00:01 For these acid -base reactions, we're just having the acid donate a hydrogen ion to the base.

00:08 The base, in all cases, well actually except for d because we're starting with a base, is water.

00:16 So we've got h2co3 that's going to react with water and donate a hydrogen to water, creating hydronium ion.

00:27 We then end up with just hco3 minus left over.

00:35 So here we've got the acid and water's the base.

00:40 Hydronium is the conjugate acid of water and bicarbonate is the conjugate base of carbonic acid.

00:53 So these are our pairs, conjugate acid -base pairs.

01:02 Then for the next one, we've got ammonia.

01:05 I guess ammonia is also not an acid, so it's going to have water behave as the acid, producing ammonium and hydroxide.

01:18 So we've got ammonia serving as the base, accepting a hydrogen from water, so water's the acid, forming the hydronium ion, which is the conjugate acid to ammonia, and hydroxide is the conjugate base to water.

01:40 So these are our pairs.

01:44 And then for the third one, we've got hno2 reacting with water, producing hydronium ion and the conjugate base no2 minus.

02:01 So this is our acid.

02:03 Water's behaving as the base as it accepts the hydrogen from nitrous acid, creating the hydronium ion, which is the conjugate acid, and the nitrite ion, which is the conjugate base to nitrous acid...

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