Answer to Question #210237 in General Chemistry for Ojeda

Question #210237

Direction: Solve the following problem. Show your complete solution and the chemical equation. (5 bonus points)


A buffer solution of pH 7.30 will be prepared from 50.00 mL solution of 0.075 M NaH2PO4 (Ka = 6.3 10-8). How many grams of NaH2PO4 must be dissolved in the solution to get the desired pH? (molar mass of NaH2PO4 = 119.0g/mol)



1
Expert's answer
2021-06-29T00:38:58-0400

7.3

Molar Mass of NaH2PO4 = 119.98 g/mol

0.075 ×119.98= 8.999g

= 6.3× 10^-8×8.999

= 56.69g


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 the first!

Leave a comment

Ask Your question

LATEST TUTORIALS
New on Blog
APPROVED BY CLIENTS