Answer
(a) 0.34 moles
(b) 1.789 moles
(c) 0.011352 moles
Work Step by Step
Molarity = (weight/molecular weight)(1000/V in mL)
Molarity = Number of moles / Volume in L
Number of moles = Molarity x Volume in L
(a) 3.4 L of a 0.100 M sucrose solution
Number of moles = 3.4 X 0.1
= 0.34 moles
(b) 0.952 L of a 1.88 M sucrose solution
Number of moles = 0.952 X 1.88
= 1.789 moles
(c) 21.5 mL of a 0.528 M sucrose solution
Number of moles = 0.0215 X 0.528
= 0.011352 moles
