Madelyn S.

asked • 07/26/16

How much CaCl2 needs to be added to change the concentration of Ca from 100mg/L to 200mg/L?

Question: I have 275 gal of water. Ca concentration is 100mg/L. How much CaCl2 is needed to be added for Ca to become 200mg/L?
I understand that you should convert mg to grams, and doing so would be .1g/L and .2g/L.
I also understand that concentration is measured in Molarity (moles/Liters) and that because this is a 1:1 ratio, the moles of CaCl2 should probably be doubled.
 How do I set this up?

2 Answers By Expert Tutors


Michael W. answered • 06/16/17

New to Wyzant

Experienced Chemist

Julie S. answered • 07/30/16

5.0 (462)

Chemistry Can Be Fun! Over 25 Years Tutoring Gen Chem and Orgo Chem

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