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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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iliri92 iliri92
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11 years ago
What will be the mass of the anhydrous calcium chloride?

Can you kindly explain how you solve this tricky question? Thank you.
Can anyone please help? Please!
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smmundaysmmunday
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11 years ago
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11 years ago
The only 'tricky' part is in recognizing that this has nothing to do with hydrates.  

CaCO3 + 2HCl ---> CaCl2 + H2O + CO2(g)

You get one mol of the chloride for each mol of the carbonate starting material, so

10g x MWCaCl2/MWCaCO3 = answer. I'll let you use the calculator :-))
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