Question

What mass of Na3PO4 must be added to 72.4 mL of 0.240 M HCl to obtain a buffer with a pH of 7.66? K(H3PO4) = 7.5 x 10-3 K2 (H
0 0
Add a comment Improve this question Transcribed image text
Answer #1

shoes Given 72.4 m2 of 0-240 Much pH = 7.66 The reaction is Nazpouthel - Mazh poy+ plach Na2H poythel -> Nalta pont Nach Totamole of Nazt pou demain = 8-10.0173 - 1) = 27-0.0173. 24-0.0173 2 #poy x main 27-0013 0.0173-1 => 7.66 = 7.2+ 109 29-0.0113 I=> 4.8842 -0.0325=0 =7 4.88475 0.0325 a = 0.0325 4884 [x = 6.658103 mol mass of plazpon = 6.65x103 x 164 = 1.0913. Na3PO4 : m

Add a comment
Know the answer?
Add Answer to:
What mass of Na3PO4 must be added to 72.4 mL of 0.240 M HCl to obtain...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT