Measures of Concentration: Molarity Answers
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A student takes a measured volume of 3.00 M HCl to prepare a 50.0 mL sample of 1.80 M HCl. What volume of 3.00 M HCl did the student use to make the sample?Use .
A
3.70 mLB
16.7 mLC
30.0 mLD
83.3 mL4
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In a group assignment, students are required to fill 10 beakers with 0.720 M CaCl2. If the molar mass of CaCl2 is 110.98 g/mol and each beaker must have 250. mL of solution, what mass of CaCl2 would be used?Use .
A
3.13 gB
38.5 gC
200 gD
617 g12
Given that the molar mass of NaNO3 is 85.00 g/mol, what mass of NaNO3 is needed to make 4.50 L of a 1.50 M NaNO3 solution?Use .
A
6.75 gB
18.9 gC
255 gD
574 g13
Which would be the best way to represent the concentration of a 1.75 M K2CrO4 solution?
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1.75%B
[K2CrO4] = 1.75 MC
(K2CrO4)D
K2CrO4, [M]Did you find these answers helpful?
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