What volume of Co2 ,at STP will evolve when 1 gof Caco, reacts with ex

1.	What volume of Co2 ,at STP will evolve when 1 gof Caco, reacts with excess of dil HCI?(1) 224 ml(2) 112 ml(3) 56 ml(4) 448 mlwith full explanation
Answer» Answer is A the EQUATION is CACO3 + 2HCl --- > CaCl2 + CO2 + H2 Given that there is 1g of CaCO3 so no of moles = mass/Mr no of moles of CaCO3 is 1/(40+12+48) = 1/100 = 0.01 mol There will be 0.01 mol of CO2 will be formed. 1 mole of gas occupies 22.4L at STP. 0.01 mol --> ?? x/0.01 = 22400ml/1 x= 224ml therefore, 0.01 mol of CO2 will FORM 224ml

What volume of Co2 ,at STP will evolve when 1 gof Caco, reacts with excess of dil HCI?(1) 224 ml(2) 112 ml(3) 56 ml(4) 448 mlwith full explanation

Answer»

Answer is A

CACO3 + 2HCl --- > CaCl2 + CO2 + H2

Given that there is 1g of CaCO3

so no of moles = mass/Mr

no of moles of CaCO3 is 1/(40+12+48) = 1/100 = 0.01 mol

There will be 0.01 mol of CO2 will be formed.

1 mole of gas occupies 22.4L at STP.

0.01 mol --> ??

x/0.01 = 22400ml/1

x= 224ml

therefore, 0.01 mol of CO2 will FORM 224ml