Biochemistry Question: please help!!

[orangeblue]

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how many grams of sodium succinate (MW=140 g/mol) and disodium succinate (162 g/mol) must be added to 1 L of water to produce a solution with pH 6.0 and a total solute concentration of 50 mM?

pH = pKa + log ( A- / HA-)

Any one know how to set up this problem ie. the log (A-/HA-) part?

 

[orangeblue]

how many grams of sodium succinate (MW=140 g/mol) and disodium succinate (162 g/mol) must be added to 1 L of water to produce a solution with pH 6.0 and a total solute concentration of 50 mM?

pH = pKa + log ( A- / HA-)

Any one know how to set up this problem ie. the log (A-/HA-) part?

 

[kpcrew]

plug in concentrations
needs to be acidic so i'm guessing it will probably be something around 3.5 grams of each but i don't feel like doing it so good luck.

 

[SpecterGT260]

This is not biochemistry.....

 

[Arbor Vitae]

how many grams of sodium succinate (MW=140 g/mol) and disodium succinate (162 g/mol) must be added to 1 L of water to produce a solution with pH 6.0 and a total solute concentration of 50 mM?

pH = pKa + log ( A- / HA-)

Any one know how to set up this problem ie. the log (A-/HA-) part?

Seriously 2 identical posts in 1 forum? Go to the MCAT forum and someone might help you.

 

[Praefectus]

This is not biochemistry.....

Sounds like Gen Chem to me.

 

[Praefectus]

If you're struggling so much that you have to post 2 topics, look on Yahoo Answers.

 

[sector9]

Identical threads merged and thread closed. SDN is not for homework help.