​calculate the mass of sulphuric acid required to decompose 25g of pure marble. what is the volume of the Co2 if measured at STP

1. The reaction is as follows:

 CaCO3 (s) + H2SO4(aq)  CaSO​4(aq) + CO2 + H2O

1 mole of pure marble reacts with 1 mole of sulphuric acid to give 1 mole of carbon dioxide.

2. Mass of Sulphuric Acid:

   Number of moles of Calcium Carbonate = Given massMolar mass=25100=14
 Mass of Sulphuric acid = 14×98=24.5 g

3. Volume of Carbon dioxide:

 1 mole of gas at STP has volume 22.4 L

So, Volume of Carbon dioxide = 14×22.4 =5.6 L

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