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Set AB6: Moles-Volume-Molarity Relationships

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Assignment Overview

Relate the moles of acid or base in an aqueous solution to the sample volume, the mass of solute, and the concentration value. 

 1. AB6Q1
Points: 0/1

How many moles of HCl are present in 139.0 mL of an aqueous solution of 0.234 M HCl?

  1. # of Moles

    mol

    Attempts: 0
 2. AB6Q2
Points: 0/1

Determine the mass of KOH that must be added to 150.0 mL of water to make a standardized solution with a KOH concentration of 0.711 M.

  1. Mass

    g

    Attempts: 0
 3. AB6Q3
Points: 0/1

During a titration lab, Polly and Ray add 29.65 mL of 0.333 M HCl to an Ehrlenmeyer flask. How many moles of HCl were added to the flask?

  1. # of Moles

    x10^

    mol

    Attempts: 0
 4. AB6Q4
Points: 0/1

Mrs. Haber is preparing for Wednesday’s titration lab. She pipets 20.00 mL of solution from a stock bottle labeled “1.94 M NaOH”. How many moles of NaOH did Mrs. Haber pipet from the stock bottle?

  1. # of Moles

    mol

    Attempts: 0
 5. AB6Q5
Points: 0/1

An aqueous solution of Ca(OH)2 has a pOH value of 2.12. Determine the moles of Ca(OH)2 present in 30.2 mL of the solution.

  1. # Moles of Ca(OH)2

    x10^

    mol

    Attempts: 0

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