Dilution Problems Worksheet Extra Molarity Problems for Practice

Dilution Problems Worksheet
1. How do you prepare a 250.-ml of a 2.35 M HF dilution from a 15.0 M stock solution?
(include a worded explanation)
2. If 455-ml of 6.0 M HNO3 is used to make a 2.5 L dilution, what is the molarity of the
dilution?
3. If 65.5 ml of HCl stock solution is used to make 450.-ml of a 0.675 M HCl dilution, what
is the molarity of the stock solution?
4. How do you prepare 500.-ml of a 1.77 M H2SO4 dilution from an 18.0 M H2SO4 stock
solution? (include a worded explanation)
Extra Molarity Problems for Practice
5. How many moles of LiF would be required to produce a 2.5 M solution with a volume of
1.5 L?
6. How many moles of Sr(NO3) 2 would be used in the preparation of 2.50 L of a 3.5 M
solution?
7. What is the molarity of a 500-ml solution containing 249 g of KI?
8. How many grams of CaCl2 would be required to produce a 3.5 M solution with a volume
of 2.0 L?
Answers: 1.1 M
3.00 M
7.8 x 102 g
3.75 M
4.64 M
8.75 M
39.2 mL
49.2 mL
Dilutions Worksheet
1)
If I add 25 mL of water to 125 mL of a 0.15 M NaOH solution, what will the molarity of the
diluted solution be?
2)
If I add water to 100 mL of a 0.15 M NaOH solution until the final volume is 150 mL, what will
the molarity of the diluted solution be?
3)
How much 0.05 M HCl solution can be made by diluting 250 mL of 10 M HCl?
4)
I have 345 mL of a 1.5 M NaCl solution. If I boil the water until the volume of the solution is 250
mL, what will the molarity of the solution be?
5)
How much water would I need to add to 500 mL of a 2.4 M KCl solution to make a 1.0 M
solution?
Answers: 0.100M
0.125M
2.07 M
700mL
50,000mL