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  • 04-06-2016
  • Chemistry
Answered

  1. What is the molarity of a 4.50 L solution that contains 68.0 g of NaCl?

What is the molarity of a 4.50 L solution that contains 68.0 g of NaCl? class=

Verified Answer :

olivia7443
olivia7443 olivia7443
  • 04-06-2016

Molarity is mol/L so in order to convert 68.0 g of NaCl to mol you have to use a conversion with the molar mass of NaCl:
68.0 g NaCl x 1 mol/58.5 g NaCl = 1.16 mol NaCl
Then plug 1.16 mol and 4.50 L in to the molarity equation:
M = 1.16 mol/4.50 L = 0.258 M

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