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Chemistry
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what is the molarity of  a solution that contains 20 grams of CaBr in 0.50 liters of solution

May 29th, 2015

DATA:

Mass of CaBr2 = 20g

Volume of the solvent= 0.5L

Molarity of the solution=?

SOLUTION:

Molarity = moles of CaBr2/volume in L

FOR MOLES OF CaBr2

Moles of CaBr2 = mass of CaBr2/molecular mass of CaBr2

Moles of CaBr2 = 20/199.878

Moles of CaBr2 = 0.1000 mol

MOLARITY

molarity = moles of CaBr2/volume in L

  = 0.1000/0.5

Molarity = 0.2001M


May 29th, 2015

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