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WorksheetsMoles and Molarity
Total questions: 25
Worksheet time: 25mins
Molarity is measured in _____.
moles per g.
mols per L.
moles per mm.
moles per mL.
Which equation is used to find molarity?
Moles solute/L solution
Moles solute/kg solution
Moles solute/kg solvent
Grams solute/L solution
Calculate the molarity of the following solution: 1.0 mole of KCl in .75 L of solution.
0.750 M
99 M
1.3 M
2.0 M
What is the molarity of a solution made by adding 1.565 moles of PbNO3 to .5 L?
300. M
31.3 M
3.13 M
1.56 M
Which has more molecules?
1 mole H2O
1 mole Al(OH)3
1 mole NaCl
They are all the same
Which has more molecules?
mole H2O
mole Al(OH)3
mole NaCl
They are all the same
Calculate the number of moles in 50 grams of NaCl (Molar mass of NaCl is 58.44 g/mol).
0.5 moles
0.86 moles
1 mole
1.5 moles
How many moles are in 22 grams of carbon dioxide ( CO2 )? (Molar mass of CO2 is 44 g/mol)
0.25 moles
0.5 moles
1 mole
2 moles
The mass of 1 mole is known as
A mole
Molar mass
Percent Composition
Grams
How many moles are needed to make 2.5 L of a 3.8 M solution?
9.5 mol
0.66 mol
1.5 mol
15 mol
Molarity is measured in
moles per kg
mols per L
moles per kJ
moles per mL
How many moles of NaCl are present in a solution with a molarity of 8.59 M and a volume of .125 L?
1074 mol
0.069 mol
1.07 mol
62.7 mol
What are the units of molarity?
M
m
Ml
Mr
How many liters would you need to make a 1 M solution if you have 6 mol of Sodium Hydroxide?
2
3
4
6
What is the molarity of 3 mole of hydrochloric acid in 3 L of water.
3
1
6
9
How many moles of NaCl are present in a solution with a molarity of 8.59M and 125 mL of solution?
07 gram
62.7 mol
1.07 mol
62.7 grams
If I have 340 mL of a 0.5 M NaBr solution, what will the concentration be if I add 560 mL more water to it?
.188 M
3.78 M
.304 M
1.76 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.
What is the molarity of a solution made by diluting 26.5 mL of 6.00M HNO3 to a volume of 250 mL?
15.9 M
0.636 M
0.642 M
1.59 M
How many moles of solute are dissolved in 0.125 L of 5.00 M NaCl?
0.625 mol NaCl
625 mol NaCl
36.5 g NaCl
0.04 mol NaCl
What is the molarity of 0.0684 mol of NaCl in 3.8 L of solution?
0.018 M
0.001M
1.052 M
0.062 M
A solution is made by dissolving 0.50 mole of NaCl in enough water to give a final volume of 0.40 L. What is the molarity of the solution?
0.10 M
0.40 M
1.25 M
2.33 M
How many liters would you need to make a 1 M solution if you have 6 moles of Sodium Hydroxide?
2
3
4
6
What is the molarity of a solution made by adding 1.565 moles of PbNO3 to 500 mL?
300. M
31.3 M
3.13 M
1.56 M
Moles and Molarity
A) 0.5 M
B) 1.0 M
C) 1.5 M
D) 2.0 M
