Home » Ask & Discuss » Chemistry. » Physical Chemistry « Back to Discussion

Physical Chemistry

Scorching goIITian

Joined:	27 Aug 2008
Post:	201

8 Mar 2010 11:36:48 IST

0 People liked this

1026

calculate pH of mixture of 100ml of 0.1M HCL and 50ml 0.1M Ca(OH)2

None

calculate pH of mixture of 100ml of 0.1M HCL and 50ml 0.1M Ca(OH)2

Share this article on:

Comments (1)

NugoRama

Blazing goIITian

Joined: 11 Mar 2009

Posts: 5517

8 Mar 2010 14:29:01 IST

Like 0 people liked this

100ml of 0.1M HCL and 50ml 0.1M Ca(OH)2

...

H+ ions = n! x volume x molarity = 1 x 0.1 x 100 milli moles = 10 mmoles.

OH- ions = n! x volume x molarity = 2 x 50 x 0.1 = 10 mmoles.

Volume of the solution = 150 ml.

[H+] = [OH-] = 1/15 M

Concentration of both is same ..hence solution is neutral ... Ph = 7.

Aliter,

As HCl is monobasic and Ca(oh)2 is diacidic..

Taking equimolar concentrations of both, one volume of Ca(oh)2 neutralises 2 volumes of HCl.

hence, solution is neutral..Hence Ph = 7.

The end.

Quick Reply

Reply

	Some HTML allowed.
	Keep your comments above the belt or risk having them deleted.
	Signup for a avatar to have your pictures show up by your comment
	If Members see a thread that violates the Posting Rules, bring it to the attention of the Moderator Team

Free Sign Up!

Preparing for IIT-JEE ?

Arihant Revision Package for IIT JEE - Books, Practice Tests + Rank Predictor

@ INR 1,995/-

For Quick Info

Find Posts by Topics

Physics.

Topics

9128

19728

3590

2097

7393

2756

2568

Mathematics.

Chemistry.

Biology

Institutes

Parents

Board

Fun Zone