Chem 2 MIDTERM 2 Form A Spring 08

Chem 2 MIDTERM 2 - Midterm 2 Exam Form A CHEM 002 Spring 2008(Chapters 7 8 9 and 10 Name Date Please note that you may need to balance the chemical

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Midterm 2 Exam Form A, CHEM 002 Spring 2008. (Chapters 7, 8, 9 and 10) Name: _________________________ Date: ____________ Please note that you may need to balance the chemical equations given in the question(s) below before attempting to answer the question(s). 1) What is the pH of a 0.125 M HAc solution? K a for HAc is 1.8 x 10 -5 . a) 2.83 b) 7.00 c) 11.2 d) 9.65 e) 11.18 2) Which of the following titrations will have a pH > 7 at the equivalence point? a) HCl with NaOH b) NH 3 with HCl c) HAc with NaOH 3) Which carbonate containing species will be predominant in an aqueous solution that has a pH of 10.00? H 2 CO 3 is a diprotic acid with the following acid dissociation constants: K a1 = 4.3 x 10 -7 , K a2 = 5.6 x 10 -11 . a) HCO 3 - b) H 2 CO 3 c) CO 3 -2 4) What is the pH of a buffer solution containing 200.0 mL of 0.100 M NH 4 Cl and 100 mL of 0.200 M NH 3 ? K b for the ammonia is 1.8 x 10 -5 . a)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 06/24/2010 for the course CHEM 002 taught by Professor Vidensik during the Spring '10 term at UC Merced.

Page1 / 4

Chem 2 MIDTERM 2 - Midterm 2 Exam Form A CHEM 002 Spring 2008(Chapters 7 8 9 and 10 Name Date Please note that you may need to balance the chemical

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online