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Calculate the number of moles present in 25 g of CaCO3.URGENT!!!

Answer» THANK you for asking the question!
In order to CALCULATE the NUMBER of moles in 25 g of calcium carbonate following formula will be used. 
As the molecular WEIGHT of calcium carbonate = 40+12+3*16
                                                molecular weight = 100 g
weight of calcium carbonate given= 25 g.
moles of calcium = weight\molecular weight
                           = 25\100
                            = 0.25 moles.
thus number of moles in 25 g of calcium carbonate is 0.25.
Hope it HELPS.


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