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Chemistry 11 Online
OpenStudy (anonymous):

the anhydrous form of a compound is 38.95% of the mass of its heptahydrate form. calculate its molar mass.

OpenStudy (gebooors):

Heptahydrate mean substance has 7 water molecule in Crystal. If x is molar mass, then M(7 H2O) form 61.05 % of the molar mass of the compound.

OpenStudy (anonymous):

but the answer is 80.48 grams/mol

OpenStudy (gebooors):

How much is molar mass of water?

OpenStudy (anonymous):

126.1036g/mol

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