PS4 - Chem 215, Spring 2007 Problem Set 4 Due Friday, Sept....

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Chem 215, Spring 2007 Problem Set 4 Due Friday, Sept. 21, 2:00 PM Name:_______________________ Student TA: ___________________ Lab Day: ____________________ Suggested Additional Problems- Ch 7: 27, 31, 37, 43, 45, 51, 53, 69, 73, 77, 105, 109 1. Calculate [H 3 O + ], [OH - ] and pH for: a) The solution prepared by mixing 90.0 mL of 5.00 M HCl and 30.0 mL of 8.00 M HNO 3 . b) The solution prepared by dissolving 0.56g of benzoic acid (C 6 H 5 COOH, K a = 6.4 x 10 -5 ) in enough water to make 1.00 L of solution. c) A 1.0 x 10 -7 M solution of HCl. Hint: You need to consider the H 3 O + resulting from the presence of HCl, as well as from the H 3 O + and OH - due to the autoionization of water:
Background image of page 1

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

View Full DocumentRight Arrow Icon
Chem 215, Spring 2007 Problem Set 4 Due Friday, Sept. 21, 2:00 PM 2. Captain Kirk, of the Starship Enterprise, has been told by his superiors that only a chemist can be trusted with the combination to the safe containing the dilithium crystals that power the ship. The combination is the pH of solution A described below, followed by the pH of solution B. For example, if the pH of
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/05/2009 for the course CHEM 2150 taught by Professor Chirik,p during the Fall '08 term at Cornell.

Page1 / 4

PS4 - Chem 215, Spring 2007 Problem Set 4 Due Friday, Sept....

This preview shows document pages 1 - 3. Sign up to view the full document.

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