Solvation and Solution Concentration

Chemistry
Tutor: None Selected Time limit: 1 Day

calculate the number of grams copper ii sulfate pentahydrate is required to prepare 100 mL of 200 M solution

May 28th, 2015

Prepartion of Solutions (direct method):

In order to calculate the amount (grams) of a compound to use in a solution you need to know the concentration (mole/L), the volume (V), and the molar mass (g/mole) of the compound.  Remember that Molarity x Volume = moles: 


Let’s say you want to make a 100 ml of a  200M solution of CuSO4.5H2O.  The molar mass(MM) is 249.68 g/mol.  How many grams of copper sulfate pentahydrate do you need to measure out?

  M x V x MM = grams
200 moles/liters * 100 ml * 269.98 grams/moles = 533 grms

May 28th, 2015

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May 28th, 2015
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