Question

A 1.0-L buffer solution initially contains 0.20 mol of NH3 and 0.20 mol of NH4Cl. In order to adjust the buffer pH to 8.70, should you add NaOH or HCl to the buffer mixture? ANSWER: HCl Part 2: What mass of the correct reagent should you add? Express your answer using two significant figures.

Name: a 10 l buffer solution initially contains 020 mol of nh3 and 020 mol of nh4cl in order to adjust the buffer ph to 870 should you add naoh or hcl to the buffer mixture answer hcl part 2 what 43412
Uploaded: 2021-12-23T21:55:17-08:00
Duration: 2 min 3 s
Channel: Alkendra Singh
Description: a 10 l buffer solution initially contains 020 mol of nh3 and 020 mol of nh4cl in order to adjust the buffer ph to 870 should you add naoh or hcl to the buffer mixture answer hcl part 2 what 43412

          A 1.0-L buffer solution initially contains 0.20 mol of NH3 and
0.20 mol of NH4Cl. In order to adjust the buffer pH to 8.70, should
you add NaOH or HCl to the buffer mixture? ANSWER: HCl
Part 2: What mass of the correct reagent should you add?
Express your answer using two significant figures.

Added by John M.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Alkendra Singh

12/23/2021

Step 1

Given that the initial concentrations of NH3 and NH4Cl are both 0.20 mol in a 1.0-L solution, we can calculate the initial concentrations of NH3 and NH4+ ions in the solution. NH3 is a weak base that reacts with water to form NH4+ and OH- ions. NH4Cl dissociates Show more…

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A 1.0-L buffer solution initially contains 0.20 mol of NH3 and 0.20 mol of NH4Cl. In order to adjust the buffer pH to 8.70, should you add NaOH or HCl to the buffer mixture? ANSWER: HCl Part 2: What mass of the correct reagent should you add? Express your answer using two significant figures.