Chem Mastery Mole Conc Set 2

4 Questions
Chem Mastery Mole Conc Set 2
Sample Question

What is the concentration of a solution of 1.25moles of magnesium borate in 2.5dm3?

0.20 mol/dm3

0.30 mol/dm3

0.40 mol/dm3

0.50 mol/dm3

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Questions and Answers
  • 1. 
    What is the concentration of a solution of 1.25moles of magnesium borate in 2.5dm3?
    • A. 

      0.20 mol/dm3

    • B. 

      0.30 mol/dm3

    • C. 

      0.40 mol/dm3

    • D. 

      0.50 mol/dm3

  • 2. 
    How many moles are there in 250.cm3 of 0.75M magnesium fluoride?
    • A. 

      0.19mol

    • B. 

      0.29mol

    • C. 

      0.39mol

    • D. 

      0.49mol

  • 3. 
    What is the concentration of a solution of 0.5 grams of sodium chloride dissolved in 0.05dm3 of solution?
    • A. 

      0.12mol/dm3

    • B. 

      0.13mol/dm3

    • C. 

      0.14mol/dm3

    • D. 

      0.15mol/dm3

  • 4. 
    How many grams of beryllium chloride are needed to make 125 mL of a 0.050 M solution?
    • A. 

      0.20g

    • B. 

      0.30g

    • C. 

      0.40g

    • D. 

      0.50g