keatonluster
keatonluster keatonluster
  • 30-06-2016
  • Chemistry
contestada

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

A) 210
B)0.21
C)3.4
D)0.29
E)0.85

Respuesta :

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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