Question

when 35 gram of wood was burnt in air it combined with 32 gram of oxygen to form 2 gram of ash and a gas mixture of carbon dioxide and water vapour. When the gas mixture was cooled 18 gram of water condensed. How much carbon dioxide was formed​

Answer 1

Answer:

Explanation:

35.5gram co^2 will be there in the air

Answer 2

Answer:

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Explanation:

Wood is composed of cellulose which is a polymer of glucose. Therefore, let us take the reactant as glucose.

C6H12O6  +    6O2  →  Ash + 6CO2 + 6H2O

Now, when the gas mixture is cooled 18 g of H2O is obtained, so mass of H2O is 18 gFrom equation,

6 mol i.e. 6×18 g of water is obtained frm 6 mol i.e.

6×32 g of O2So,

18 g of water will be obtained from  

6×32  6×18×18=32 g of O2So,

whole O2 is being consumed.

Now, 6×32 g of O2 gives 6×44 g of CO2So, 32 g of O2 will give

 6×44 6×32×32=44 g of CO2