Question

1 gram of a mixture containing na2co3 and nahco3 in equal amounts is heated until a constant mass is obtained. Find the volume of CO2 gas liberated​

Answer 1

Answer:

Explanation:

amount of na2co3 = 0.5 gm

amount of nahco3 = 0.5 g

when na2co3 is heated it gives na2o and co2

when nahco3 is heated it gives na2co3 , water and co2

and na2co3 is further heated to form na2o an co2

moles of co2 in first case  = 0.0035

2nahco3 = na2co3+h2o+co2

moles of co2 = 0.03

na2co3 = na2o + co2

moles of  co2 = 0.03

total moles of co2 = 0.0635

volume co2 liberated = 1.4224 lt