Question

What is the [NH4+], [NH3], pKa and pH of a buffer solution which is composed of 100 mL of 0.20 M NH4Cl and 200 mL of 0.10 M NH3? (Ka for NH4+ = 5.6 x 10-10).

Name: what is the nh4 nh3 pka and ph of a buffer solution which is composed of 100 ml of 020 m nh4cl and 200 ml of 010 m nh3 ka for nh4 56 x 10 10
Uploaded: 2023-07-11T15:11:32-08:00
Duration: 4 min 1 s
Channel: Isaac Huidobro
Description: what is the nh4 nh3 pka and ph of a buffer solution which is composed of 100 ml of 020 m nh4cl and 200 ml of 010 m nh3 ka for nh4 56 x 10 10

          What is the [NH4+], [NH3], pKa and pH of a buffer solution which is composed of 100 mL of 0.20 M NH4Cl and 200 mL of 0.10 M NH3? (Ka for NH4+ = 5.6 x 10-10).

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Organic Chemistry

Janice Gorzynski Smith 4th Edition

Instant Answer

Solved by Expert Isaac Huidobro

07/11/2023

Step 1

The total volume of the solution is 100 mL + 200 mL = 300 mL = 0.3 L. The moles of NH4+ from NH4Cl = 0.20 M * 0.1 L = 0.02 mol. The moles of NH3 = 0.10 M * 0.2 L = 0.02 mol. So, the molarity of NH4+ = 0.02 mol / 0.3 L = 0.067 M. The molarity of NH3 = 0.02 mol Show more…

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What is the [NH4+], [NH3], pKa and pH of a buffer solution which is composed of 100 mL of 0.20 M NH4Cl and 200 mL of 0.10 M NH3? (Ka for NH4+ = 5.6 x 10-10).