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Question
The reaction between 15 g of marble and nitric acid is given by the following equation:
\[\ce{CaCO3 + 2HNO3 -> Ca(NO3)2 + H2O + CO2}\]
Calculate the mass of anhydrous calcium nitrate formed.
Solution
100 g of CaCO3 produces = 164 g of Ca(NO3)2
So, 15 g CaCO3 will produce = `(164 xx15)/100` = 24.6 g
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