
Molarity and Dilution Problems
Authored by Andrea Kirk
Chemistry
10th - 12th Grade
Used 7+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Calculate the moles of solute needed to make 0.750L of 2.50 M NaCl solution? (remember M=mol/L)
3.33 moles
2.50 moles
1.88 moles
109 moles
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What MASS (in grams) of AgNO3 must be used to make 0.200 L of a 0.100 M solution? (remember M=moles/L, but I did not ask for moles, so you will need to convert the moles into grams!!) molar mass of silver nitrate is 169.87g/mol
3.40g
84.9g
0.000118g
0.02g
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
DILUTION: How much stock solution (concentrated at 18.00 M) of H2SO4 must be mixed to create a 6.00 M 1.75 L solution? (remember M1V1=M2V2)
0.500 L
1.71 L
61.7 L
0.583 L
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Calculate the molarity of a solution made with 30.0g of HCl with 500.0 mL (remember, M=moles/L but I did not give you moles...) molar mass of HCl is 36.46g/mol AND 1000mL=1L
1.65 M
60.0 M
0.412 M
0.00165 M
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
How many L of a 1.00 M KNO3 solution is needed to make a 0.750 L of 0.230 M solution? (remember M1V1=M2V2)
173 L
0.173 L
3.26 L
0.307 L
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