Calculate the volume in liters of a 0.111 mol/L potassium dichromate solution that contains 125. mmol of potassium dichromate. Be sure your answer has the correct number of significant digits.

Question

Chemistry

Moshe Terry

3 May, 04:58

Calculate the volume in liters of a 0.111 mol/L potassium dichromate solution that contains 125. mmol of potassium dichromate. Be sure your answer has the correct number of significant digits.

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Answers (1)

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Dillon Cuevas · Answer 1

We need 1.13 L to creat a concentration of 0.111 M

Explanation:

Step 1: Data given

Concentration of the potassium dichromate solution = 0.111 mol / L = 0.111 M

Number of moles of potassium dichromate = 125 mmol = 0.125 moles

Step 2: Cqalculate the volume of the potassium dichromate solution

Concentration = moles / volume

Volume potassium dichromate solution = moles potassium dichromate / concentration potassium dichromate

Volume potassium dichromate solution = 0.125 moles K2Cr2O7 / 0.111 M K2Cr2O7

Volume potassium dichromate solution = 1.13 L

We need 1.13 L to creat a concentration of 0.111 M