Register

What is the ph of a solution of 0.450 m kh2po4, potassium dihydrogen phosphate?

What is the ph of a solution of 0.450 m kh2po4, potassium dihydrogen phosphate?
92.0k views
2 votes
What is the ph of a solution of 0.450 m kh2po4, potassium dihydrogen phosphate?

User Landry
by
8.4k points

1 Answer

4 votes
pKa = -log (Ka) = log [HPO4(2-)] - log[H+]^2 = - log(4.2×10^-13)
pH = - log [H+]
- log [H+]^2 = - 2 log [H+]
2pH = - log (4.2×10^-13) - log [HPO4(2-)]
2pH = - log (4.2×10^-13) - log (0.550)
pH = 6.32

User Wueb
by
7.9k points
← Prev Question Next Question →

Related questions

User Incredible
asked Nov 18, 2018 146k views
What is the pH of a solution of 0.400 M KH2PO4, potassium dihydrogen phosphate?
Incredible asked Nov 18, 2018
by Incredible
8.5k points
2 answers
0 votes
146k views
User Zygimantus
asked Oct 1, 2018 152k views
What is the ph of a solution of 0.700 m kh2po4, potassium dihydrogen phosphate?
Zygimantus asked Oct 1, 2018
by Zygimantus
8.0k points
1 answer
4 votes
152k views
User Mmlooloo
asked Feb 24, 2019 193k views
What is the pH of a solution of 0.750 M KH2PO4, potassium dihydrogen phosphate?
Mmlooloo asked Feb 24, 2019
by Mmlooloo
8.2k points
1 answer
2 votes
193k views
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories

Other Questions

Compare and contrast an electric generator and a battery??
Can someone complete the chemical reactions, or write which one do not occur, and provide tehir types? *c2h4+h2o *c3h8 + hcl *c2h2+br2 *c4h10+br2 *c3h6+br2
As an object’s temperature increases, the ____________________ at which it radiates energy increases.
Link Copied!