Quiz 4 - Quiz 4 Tara Malone Started 6:59 PM Questions 30 1(Points 4 What is the H3O concentration in 0.45 M HCN(aq(Ka of HCN = 4.0 10-10 Write this

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Quiz 4 Tara Malone  Started: October 19, 2008 6:59 PM Questions: 30     1.  (Points: 4)      What is the H 3 O + concentration in 0.45 M HCN(aq)? ( K a of HCN = 4.0 × 10 -10 ) Write this question number in the answer sheet and show your work in the answer sheet. Paragraph  Insert equation    Save Answer     2.  (Points: 4)      A solution is prepared by diluting 0.16 mol HNO 3 with water to a volume of 1.5 L. What is the pH of this solution? Write this question number in the answer sheet and show your work in the answer sheet. Paragraph  Insert equation    Save Answer     3.  (Points: 4)      What is the OH - concentration in 0.51 M CH 3 CO 2 - (aq)? ( K b of CH 3 CO 2 - = 5.6 × 10 -10 ) Write this question number in the answer sheet and show your work in the answer sheet.
Background image of page 1

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

View Full DocumentRight Arrow Icon
Paragraph  Insert equation    Save Answer     4.  (Points: 4)      At 25 ° C, what is the H 3 O + concentration in 0.044 M NaOH(aq)? ( K w = 1.0 × 10 -14 ) Write this question number in the answer sheet and show your work in the answer sheet. Paragraph  Insert equation    Save Answer     5.  (Points: 4)      What is the pH of 0.015 M aqueous benzoic acid? ( K a of C 5 H 6 CO 2 H = 6.3 × 10 -5 ) Write this question number in the answer sheet and show your work in the answer sheet. Paragraph  Insert equation    Save Answer     6.  (Points: 4)     
Background image of page 2
What is the pH of 9.2 × 10 -3 M aqueous cyanide ion? ( K b of CN - = 2.5 × 10 -5 ) Write this question number in the answer sheet and show your work in the answer sheet. Paragraph  Insert equation    Save Answer     7.  (Points: 4)      Acids that ionize extensively in solution are referred to as a.  dissociators. b. 
Background image of page 3

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

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/16/2008 for the course CHM 152 taught by Professor Thomas during the Fall '08 term at Pima CC.

Page1 / 13

Quiz 4 - Quiz 4 Tara Malone Started 6:59 PM Questions 30 1(Points 4 What is the H3O concentration in 0.45 M HCN(aq(Ka of HCN = 4.0 10-10 Write this

This preview shows document pages 1 - 4. Sign up to view the full document.

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