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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 128 times)

anshika

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on: Jul 8, 2021

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
General Chemistry: Principles and Modern Applications ¦ Petrucci, Herring, Madura, Bissonnette ¦ 11th Edition
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Marked as best answer by anshika on Jul 8, 2021

courtney_bruh

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Reply #1 on: Jul 8, 2021
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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anshika

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Reply 2 on: Jul 8, 2021
Excellent

ecabral0

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Reply 3 on: Yesterday
Gracias!

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