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keatonluster
keatonluster keatonluster
  • 30-06-2016
  • Chemistry
Answered

how many moles of solute are contained in a 250 ml solution that has a concentration of.85 m?

A210

B)0.21

C)3.4

D)0.29

E)0.85

Verified Answer :

Willchemistry
Willchemistry Willchemistry
  • 30-06-2016

Volume = 250 mL in liters : 250 / 1000 => 0.25 L

Molarity = 0.85 M

Number of moles:

n = M x V

n = 0.85 x 0.25

n = 0.21 moles

Choice B

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