Question

10g of C burns giving 11.2liters of CO2 at stp sfter combustion the amount of unburnt carbon is​

Answer 1

Answer:

1 mole of a substance gives 22.4L of CO2 at STP

Then, 11.2L of CO2 will be out for 0.5 mole

So, 0.5 if Carbon is 12/2 = 6g

Amount of unburnt carbon is = 10-6 = 4g

hope this will help you

Answer 2

Answer:

1 mole burn 22.4L co2 which is 12 g

So if 11.2g co2 burnt its means c is 0.5mole which 6 g

Given amount of c is 10g and 6g is used to burn 11.2 co2 so remaining is 4g