Schedule

Weekly Web Work #13:

aAcids and Bases – What pHun!

This assignment was due by noon on Friday May 2, 2003.

Submissions are no longer accepted.

Please type your last name, first name:

Please type the last five digits of your ID number:

Please type a nickname:
(in case your answer gets used in class).

You may change your mind as often as you wish. When you are satisfied with your responses, click the SUBMIT button at the bottom of this page.

1. What strong acid and strong base combine in a neutralization reaction to yield Li2SO4?
 
 2. Pick an acid and a base from the list below. Write a balanced chemical equation for the neutralization reaction using the acid and base you chose. (I know you can't enter subscripts in the box.)
 
  Acid   Base
HNO3 Mg(OH)2
HClO4 Ca(OH)2
HBr Sr(OH)2
 
3. Assume that your base is available as an aqueous solution with a concentration of 0.200 M. What volume of your base will it take to neutralize 25.0 mL of your acid if your acid is 0.300 M. (Note: The answer is not 37.5 mL) You must explain the steps you used in your calculation.
 
4. At the end of your titration in question 3, what substances are present? (Hint: Is there any acid remaining? Any base?)
 
5. Consider a titration of 30 mL of acetic acid (0.200 M) with sodium hydroxide (0.200 M). What volume of NaOH is needed to neutralize the acid?
 
6. What is the salt you are forming? What is the conjugate acid of the anion of this salt?
 
7. What volume of sodium hydroxide would be used to get half-way to neutralization?
 
8. What substances are present in your flask when you have neutralized half of the acid?
 
9.

What is the name for the mixture in question 8? (Hint: See page 280 in your text.)
 
Remember, since this file is in the archive, you can no longer submit it.



 

This site is made possible by funding from the National Science Foundation (DUE-9981111).
©2003, S. Holladay & K. Anliker/ IUPUI, all rights reserved.