mm = molar mass
mm CoCl2.6H2O= (mm CoCl2 + mm H2O x 6)= ??
mm H2O x 6 = ?
%H2O =( mm H2Ox6/mm CoCl2.6H2O)*100 = ?
What is the percentage of water in the hydrate CoCl2 • 6H2O? Show work
I'm confused whether it's 52.17% or 45%
6 answers
mm CoCl2.6H2O= (mm CoCl2 + mm H2O x 6)= 108g H2O
%H2O =( mm H2Ox6/mm CoCl2.6H2O)*100 = ?45%?????
%H2O =( mm H2Ox6/mm CoCl2.6H2O)*100 = ?45%?????
(108/237.9)*100 = about 45% but with that many significant digits in the numbers I would have used AT LEAST 3 in the answer)
3 where?
At the end! That means not 45% but 45.1% or 45.2% or 45.3% or whatever that third digit is..
45.39 %