Question

10g of kclo3 is strongly heated in a vessel which partially decomposed as 2kclo3 gives 2kcl +3o2 and rest as 4kclo3 gives 3kclo4 + kcl if 9.52g of solid residue is left in vessel by end of the reaction then how much oxygen is escaped out

Answer 1

Answer:

As 10g of $KCLO_{3}$ is decomposed the total mass of products formed will also be 10g. since 0.48g oxygen gas is escaped out the total mass of solid residue is 10-0.48=9.52g

Answer 2

Answer:

Amount of Oxygen is 0.48 g

Explanation:

Let us first see the chemical reactions involved;

2kclo3  == 2kcl +3o2

4kclo3 == 3kclo4 + kcl

In above decompositions the only gas that is produced is oxygen , that means if we have a total of 10g kclo3, then at the end of experiment or decomposition, we are left with is 9.52 g, then the amount that has gone out, has gone out in the form of oxygen only. Hence amount of oxygen released in 0.48g