CONCENTRATION CALCULATIONS


I MOLALITY

A. Determine mass of solute

1. _____ 0.50 m Na2SO4

2. _____ 0.67 m Al2(SO4)3

B. Determine Molality of solution

3. _____ 100 g CuSO4 in 500 g H2O

4. _____ 171 g Al2(SO4)3 in 300 g H2O

II MOLARITY

C. Determine mass of solute

5. _____ 750 ml of 0.10 M Al2(SO4)3

6. _____ 250 ml of 0.50 M H2SO4

D. Determine Molarity of solution

7. _____ 69 g C2H5OH in 1500 ml

8. _____ 84 g KOH in 250 ml

III EQUIVALENTS

E. Determine mass of the number of equivalents

9. _____ 1 eq. Fe(OH)3

10. _____ 1.5 eq. HC2H3O2

F. Determine the number of eqivaltnes for each

11. _____ 54.0 g Na2SO4

12. _____ 201 g K3PO4

IV NORMALITY

G. Determine mass of solute

13. _____ 300 ml of 0.30 N HNO3

14. _____ 750 ml of 0.10 N Al2(SO4)3

H. Determine Normality of solution

15. _____ 60 g CuSO4 in 300 ml

16. _____ 21 g HNO3 in 750 ml

V NORMALITY & MOLARITY

I. Molarity to Normality

17. _____ 0.50 M HC2H3O2

18. _____ 1.5 M NaHCO3

J. Normality to Molarity

19. _____ 1.25 N Al2(SO4)3

20. _____ 2.0 N Na3PO4


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