Question

What is the original molarity of a solution of ammonia whose pH is 11.12? Be sure your answer has the correct number of significant digits. Note: The K_b for NH_3 is 1.8x10−5.

Name: what is the original molarity of a solution of ammonia whose ph is 1112 be sure your answer has the correct number of significant digits note the kb for nh3 is 18x105 18858
Uploaded: 2022-02-14T11:07:22-08:00
Duration: 3 min 49 s
Channel: Ripujeet P
Description: what is the original molarity of a solution of ammonia whose ph is 1112 be sure your answer has the correct number of significant digits note the kb for nh3 is 18x105 18858

          What is the original molarity of a solution of ammonia whose pH is 11.12? Be sure your answer has the correct number of significant digits. Note: The K_b for NH_3 is 1.8x10−5.

Added by Amanda F.

Elementary and Intermediate Algebra

Alan S. Tussy, R. David Gustafson 5th Edition

Instant Answer

Solved by Expert Ripujeet P

02/14/2022

Step 1

Since pH + pOH = 14, we first find the pOH. \[ pOH = 14 - pH = 14 - 11.12 = 2.88 \] Now, we can find the concentration of hydroxide ions: \[ [OH^-] = 10^{-pOH} = 10^{-2.88} \approx 1.32 \times 10^{-3} \, \text{M} \] Show more…

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What is the original molarity of a solution of ammonia whose pH is 11.12? Be sure your answer has the correct number of significant digits. Note: The K_b for NH_3 is 1.8x10−5.