Molarity And Dilution Question Preview (ID: 59389)


Calculations Of Moles, Liters, Molarity, And Dilutions. TEACHERS: click here for quick copy question ID numbers.

Another way to write molarity (M) is
a) grams/liter
b) moles/liter
c) grams/molar mass
d) molar mass/liter

A solution contains 3 moles of HCl in 6 L of solution. What is the molarity?
a) 0.5 M
b) 1.0 M
c) 2.0 M
d) 18.0 M

What is the molarity of a solution that contains 125 g NaCl in 4.00 L of solution?
a) 2.14 M
b) 0.535 M
c) 8.56 M
d) 31.3 M

What is the number of moles in 0.250 L of a 0.4M solution?
a) 1.6 moles
b) 0.62 moles
c) 0.16 moles
d) 0.10 moles

How many mL of a 2.0 M NaBr solution are needed to make 200 mL of 0.5 M NaBr?
a) 25 mL
b) 100 mL
c) 50 mL
d) 150 mL

If 400 mL of a 8.0 M solution is diluted to a molarity of 5.3M, what is the end volume of solution?
a) 200 mL
b) 400 mL
c) 600 mL
d) 180 mL

Which of the following is the correct formula for calculating molarity?
a) moles/kg of solvent
b) moles/liters of solution
c) # particles/Avogadro's #
d) theoretical yield/actual yield

How many moles of NaCl are present in a solution with a molarity of 8.59 M and a volume of 125 mL?
a) 1.07 mol
b) 1074 mol
c) 0.069 mol
d) 62.7 mol

How do you convert from grams to moles?
a) Divide by the molar mass
b) Divide by Avogadro's number
c) Multiply by the molar mass
d) Multiply by Avogadro's number

What is the molarity of a solution made by diluting 26.5 mL of 6.00M HNO3 to a volume of 250 mL?
a) 15.9 M
b) 0.642 M
c) 0.636 M
d) 1.59 M

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