Molarity and Dilutions

Quiz
•
Science
•
10th Grade
•
Hard
Standards-aligned
Lisa Thompson
FREE Resource
25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What volume, in milliliters, of 10.0 M NaOH is needed to prepare 300.0 mL of 2.00 M NaOH by dilution?
0.067 mL
60.0 mL
100 mL
125 mL
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many mL of 10.8M HCl are required to make 100.0 mL of 3.00M acid?
27.8 mL
27.78 mL
2.8 mL
278 mL
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What volume of 1.50 M KBr can be made from 15.6 mL of concentrated KBr with a molarity of 9.65 M?
150. mL
151 mL
1.00 L
100. mL
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
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
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A teacher starts with 0.250 L of a 0.0150 M HBr solution and dilutes it to 0.750 L. What is the concentration of HBr in the new solution?
0.005 M
0.045 M
12.5 M
7.5 M
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of these is the CORRECT equation for solving for Molarity?
M = mol / mL
M = mol / L
M= mL / mol
M = L / mol
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A student wants to make 100. mL of 0.25 M C6H12O6 by diluting a 1.3 M C6H12O6 solution. How much of that solution should be used? Which answer shows the correct way to solve this problem?
(100. X 0.25) / 1.3
(100. X 1.3) / 0.25
100. / (1.3 X 0.25)
(1.3 X 0.25) / 100.
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