A chemist must dilute 42.4 mL of 483. mM aqueous potassium dichromate (K,Cr,O,) solution until the concentration falls to 380. mM . He'll do this by adding distilled water to the solution until it reaches a certain final volume. Calculate this final volume, in milliliters. Round your answer to 3 significant digits. mL ala

Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter1: The Nature Of Chemistry
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A chemist must dilute 42.4 mL of 483. mM aqueous potassium dichromate (K,Cr,O,) solution until the concentration falls to 380. mM . He'll do this by
adding distilled water to the solution until it reaches a certain final volume.
Calculate this final volume, in milliliters. Round your answer to 3 significant digits.
mL
ala
Transcribed Image Text:A chemist must dilute 42.4 mL of 483. mM aqueous potassium dichromate (K,Cr,O,) solution until the concentration falls to 380. mM . He'll do this by adding distilled water to the solution until it reaches a certain final volume. Calculate this final volume, in milliliters. Round your answer to 3 significant digits. mL ala
Expert Solution
Step 1

Given : Concentration of K2Cr2O7 to be prepared = 380 mM = 0.380 M                  (since 1 M =1000 mM)

Volume of K2Cr2O7 to be diluted i.e initial volume = 42.4 mL

And concentration of K2Cr2O7 to be diluted i.e initial concentration of solution = 483 mM = 0.483 M

 

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