MoonGirl6527 MoonGirl6527
  • 03-07-2018
  • Chemistry
contestada

What is the molarity of a 2.0 L sodium hydroxide solution containing 10.0 grams of solute?
a.0.80B.0.13C.5.0D.0.25

Respuesta :

Willchemistry
Willchemistry Willchemistry
  • 03-07-2018
molar mass NaOH = 39.997 g/mol

number of moles:

n = mass of solute / molar mass

n = 10.0 / 39.997

n = 0.2500 moles

Therefore:

Molarity = moles of solute / volume ( L )

M = 0.2500 / 2.0

M = 0.13 mol/L

Answer B
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