Acid-Base Chemistry Extra Practice Questions AWS
Fall 2017
Acid-Base Chemistry Extra Practice Questions 1. Identify the Lewis acid and Lewis Base. a) Al3+ + 6H2O ----> Al(H2O)63+ b) NH3 + BF3 ----> H3NBF3 c) BF3 + F- ----> BF42. Identify the Bronsted Acid and Bronsted Base. a) HCl + NaOH ----> H2O + NaCl b) H2SO4 + NH3 ----> HSO4- + NH4+ c) HNO2 + PO43- ----> NO2- + HPO423. What are the conjugate acid and conjugate base in the each of the reactions in question 2? 4. Carbonic acid [H2CO3] Ka = 4.4 x 10-7 is a weak acid. If a solution of carbonic acid
was found at a concentration of 2.00 M, what is the [H3O+] in an aqueous solution? 5. 4 M of CH3COOH and 5 M of NH3 are mixed together in an acid-base reaction. If the reaction has a ka of 1.25 x 10-6, what are the final concentrations of [CH3COOH], [NH3], [CH3COO-] and [NH4+]? 6. 4 M of [CH3CH2COOH] and 5 M of H2O are mixed together in an acid-base reaction. If the reaction has a ka of 2.1 x 10-4, what is the pH of the final solution? 7. If one has a 10 M solution of NaOH, what is the pOH?
1 © Copyright 2017 by Wizedemy Inc. All Rights Reserved. No part of this publication may be reproduced or transmitted in any form or by any means, or sorted in a data base or retrieval system, without the prior written permission Wizedemy Inc.
Acid-Base Chemistry Extra Practice Questions 1. Identify the Lewis acid and Lewis Base. a) Al3+ + 6H2O ----> Al(H2O)63+ b) NH3 + BF3 ----> H3NBF3 c) BF3 + F- ----> BF42. Identify the Bronsted Acid and Bronsted Base. a) HCl + NaOH ----> H2O + NaCl b) H2SO4 + NH3 ----> HSO4- + NH4+ c) HNO2 + PO43- ----> NO2- + HPO423. What are the conjugate acid and conjugate base in the each of the reactions in question 2? 4. Carbonic acid [H2CO3] Ka = 4.4 x 10-7 is a weak acid. If a solution of carbonic acid
was found at a concentration of 2.00 M, what is the [H3O+] in an aqueous solution? 5. 4 M of CH3COOH and 5 M of NH3 are mixed together in an acid-base reaction. If the reaction has a ka of 1.25 x 10-6, what are the final concentrations of [CH3COOH], [NH3], [CH3COO-] and [NH4+]? 6. 4 M of [CH3CH2COOH] and 5 M of H2O are mixed together in an acid-base reaction. If the reaction has a ka of 2.1 x 10-4, what is the pH of the final solution? 7. If one has a 10 M solution of NaOH, what is the pOH?
1 © Copyright 2017 by Wizedemy Inc. All Rights Reserved. No part of this publication may be reproduced or transmitted in any form or by any means, or sorted in a data base or retrieval system, without the prior written permission Wizedemy Inc.
