78 518
Assignments Done
99,5%
Successfully Done
In September 2019

Answer to Question #52492 in Inorganic Chemistry for Alexis

Question #52492
How much of each component would you need to make a 0.5 M sodium phosphate buffer containing 0.5 M KCl and 0.05% sodium azide, pH 8.0?
Expert's answer
At first you need to prepare stock solutions of 1M NaH2PO4 and 1M of Na2HPO4. Dissolve 138 g of NaH2PO4•H2O in H2O to final volume 1L. Dissolve 142 g of Na2HPO4 in water to final volume 1L.
Than mix 466 mL of 1M NaH2PO4 and 34 mL of 1M Na2HPO4.
Add 37 g of KCl, dissolve it.
Add 0.5 g of sodium azide.
Additionally check PH.
Add H2O to 1L.

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be first!

Leave a comment

Ask Your question

Submit
Privacy policy Terms and Conditions