Compute the concentration a phosphate buffer solution

Reference no: EM13679626

A phosphate buffer solution contains 0.08 M K2HPO4 and 0.12 M KH2PO4. pKa values for H3PO4 are 2, 6.8, and 12.2. Compute the concentration.

a) H3PO4

b) H2PO4-

c) HPO4^2-

d) H+

e) OH-

f) K+

Reference no: EM13679626

Questions Cloud

Explain what is the purpose of adding water to the sepratory : Explain we then added water as well as it separated into two layer and we drained the bottom layer. Explain what is the purpose of adding water to the sepratory funnel.

The reactivities of phenol and aniline in the direction : The reactivities of phenol and aniline in the direction of bromination change when the reaction is performed in sulfuric acid rather than aceticacid. Explain why

Explain forces that are mixed up in chromatography : Name two intermolecular forces that are mixed up in chromatography and the roles that they play during separation.

Find out the partial pressures of oxygen and nitrogen : A sample of air contains 8.583 moles/m3 of oxygen as well as 16.40 moles/m3 of nitrogen at STP (1 atm 0 degrees Celsius). Find out the partial pressures of oxygen and nitrogen in 1 m3 of the air

Compute the concentration a phosphate buffer solution : A phosphate buffer solution contains 0.08 M K2HPO4 and 0.12 M KH2PO4. pKa values for H3PO4 are 2, 6.8, and 12.2. Compute the concentration.

State the entropy raise in the universe during the expansion : At the BIG BANG the universe extended from a single point into a sphere of radius about five light years rather quickly. Approximate the entropy raise in the universe during the expansion under two different assumptions

Compute delta h rxn and s values to evaluate delta s : For the subsequent reactions, look up the delta Hf values to compute delta H rxn and S values to evaluate delta S system and hence compute delta S universe at 298 K.

Define how this statement is equivalent to the statement : The second law of thermodynamics can be stated various different ways. One way is to state there is no such thing as a perpetual motion machine. Define how this statement is equivalent to the statement. The entropy of the universe rises for any sp..

Explain what is the structure of a : Compound a C9H12, undergoes nitration to give three products. The 1H NMR spectrum of A shows a complex three-proton multiplet at 6.92-6.99? And a nine-proton singlet at 2.34. Explain what is the structure of A

User Account

All Pages