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Author Question: A handbook states that to prepare a particular buffer solution mix 63.0 mL of 0.200 M aqueous ... (Read 102 times)

anshika

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Question 1

A handbook states that to prepare a particular buffer solution mix 39.0 mL of 0.20 M aqueous NaH2PO4 with 61.0 mL of 0.20 M aqueous Na2HPO4. What will be the pH of this buffer? For phosphoric acid   Ka2= 6.2 × 10-8
◦ 7.2
◦ 7.4
◦ 7.0
◦ 6.8
◦ 6.6

Question 2

A handbook states that to prepare a particular buffer solution mix 63.0 mL of 0.200 M aqueous HC2H3O2 with 37.0 mL of 0.200 M aqueous NaC2H3O2. What is the pH of this buffer? (Ka = 1.8 × 10-5)
◦ 4.74
◦ 4.51
◦ 4.98
◦ 5.33
◦ 7.00


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Marked as best answer by anshika on Jul 8, 2021

courtney_bruh

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anshika

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Reply 2 on: Jul 8, 2021
Gracias!


kjohnson

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Reply 3 on: Yesterday
Wow, this really help

 

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