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calculate the molar concentration of a brine solution containing 225g of pure sodium...

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deborahgalley | eNoter

Posted May 22, 2013 at 2:02 PM via web

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calculate the molar concentration of a brine solution containing 225g of pure sodium chloride dissolved in 4.00L of solution

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jerichorayel | College Teacher | (Level 1) Senior Educator

Posted May 22, 2013 at 2:39 PM (Answer #1)

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To calculate for the molar concentration of the brine solution we need to use the expression for molarity.

`Molarity = (mol e s solute)/(volume of Solution)`

`Molarity = (mol e s NaCl)/(Liters of solution)`

Given:

Solute = 225 grams Sodium chloride (NaCl)

Volume of the solution = 4.00 L

`Mol es NaCl = (225 grams NaCl) * (1 mol e NaCl)/(58.44 grams NaCl)`

`Mol es NaCl = 3.85 mol es NaCl`

 

`Molarity = (mol e s NaCl)/(Liters of solution)`

`Molarity = (3.85 mol es NaCl)/(4.00 L)`

`Molarity = 0.962 M -> answer`

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