Wednesday
October 22, 2014

Homework Help: Chemistry

Posted by Jared on Monday, July 9, 2007 at 1:12pm.

Subjects



Art



Business



Computers



English



Foreign Languages



Health



Home Economics



Mathematics



Music



Physical Education



Science



Social Studies







Features



Contribute



Download



Experts



Forum



Job Openings



Homework Tips



Libraries.Jiskha



Link to Us



Reference



School Supplies



Search







Homework Help Forum: Chemistry
Current Questions | Post a New Question | Answer this Question | Further Reading

Posted by Jared on Sunday, July 8, 2007 at 1:13am.
download mp3 free instrumental remix
What is the pH of the solution created by combining 2.50 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)?

I believe if my calculations are correct the answer is 1.28

however i do not know how to answer this question because it has a weak acid instead of a strong acid

What is the pH of the solution created by combining 2.50 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HC2H3O2(aq)?



Yes, the 1.28 pH for the first one is correct.
The second one forms a buffer. write the equation.
NaOH + HC2H3O2 ==> NaC2H3O2 + HOH

Calculate mol NaOH initially.
Calculate mols HC2H3O2 initially.
There will be an excess of HC2H3O2 and there will be some NaC2H3O2 formed.
Then use the Henderson-Hasselbalch equation to caluclate the pH of the buffer created. Post your work if you get stuck.

What is a variable?
What is the definition of model?
Why are models useful in chemistry?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

science - Subjects Art Business Computers English Foreign Languages Health Home...
biology - Subjects Art Business Computers English Foreign Languages Health Home...
math - Subjects Art Business Computers English Foreign Languages Health Home ...
Algebra - How would I complete this problem? Geometry. The area of a rectangle ...
Critical Thinking 205 - So I've been searching, checking the web on many ...
Statistics- PEASE help! - Subjects Art Business Computers English Foreign ...
physics - Subjects Art Business Computers English Foreign Languages Health Home...
for David, French - Thank you for using the Jiskha Homework Help Forum. I have ...
Math - I can't seem to do this problem. And my grade is riding on it. Can ...
math, economics, game theory - Subjects Art Business Computers English Foreign ...

Search
Members