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WorksheetsDilution of solution
Total questions: 15
Worksheet time: 40mins
When you make a dilution, which of these values remains constant?
The molarity (M)
The total moles of solute
The volume (V)
The concentration
How many cm3 of stock solution of 2.0 M NaCl do you need to prepare 100 cm3 of 0.150M NaCl?
7.5 cm3
15 cm3
1300 cm3
200 cm3
The term molar, which describes a solution's concentration, is written as?
M
mol
g
g/L
Calculate the Molarity in a solution containing 40.0 g of NaCl dissolved in 500.0 ml of H2O.
0.0800 M
12.5 M
1.37 M
0.740 M
Molarity is ...
grams of solute/deciliters of solvent.
grams of solute/liters of solution.
moles of solute/liters of solution.
moles of solute/milliliters of solvent.
A solution is made by dissolving 0.50 mole of NaCl in enough water to give a final volume of 400.0 cm3. What is the molarity of the solution?
0.10 M
0.40 M
1.25 M
2.33 M
How many grams of solute are dissolved in 125.0 mL of 5.00 M NaCl (Mr = 58.45)?
What is the molarity of a solution made by diluting 26.5 cm3 of 6.00M HNO3 to a volume of 250 cm3 ?
15.9 M
0.636 M
0.642 M
1.59 M
If I have 340 cm3 of a 0.5 M NaBr solution, what will the concentration be if I add 560 cm3 more water to it?
0.188 M
3.78 M
0.389 M
1.76 M
How many moles of solute are present in 50.0 cm3 of 0.20M KNO3?
10.0 moles solute
0.05 moles solute
1.00 moles solute
0.01 moles solute
How many mL of 10.8M HCl are required to make 100.0 cm3 of 3.00M acid?
27.8 cm3
0.278 cm3
2.8 cm3
278 cm3
What would the molarity of a solution be if you took 10 cm3 of a 13M stock solution and made a 300 cm3 solution?
390M
230M
0.43M
0.26M
You are adding a chlorine solution to a swimming pool. The stock solution of chlorine is 1000M. Your swimming pool (75,000 dm3) needs to be at a concentration of 0.1M. How much of the stock solution should you add?
7500 dm3
0.75 dm3
750 dm3
7.5 dm3
