Question

Urea is manufactured by passing co2 through ammonia solution followed by crystallisation

Answer 1

Dear Friend

2NH3 + CO2 → NH2-CO-NH2 + H2Omoles of urea= 999.6×10360= 16.66×103Therefore, Moles of CO2=16.66×103CnH2n+2 + O2 → nCO2 + H2O16.66×103n×[12n + (2n+2)]= 236×103n ≈ 12Therefore, Molecular formula of hydrocarbon = C12H26

Answer 2

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Dear Student,

2NH3 + CO2 → NH2−CO−NH2 + H2Omoles of urea= 999.6×10360= 16.66×103Therefore, Moles of CO2=16.66×103CnH2n+2 + O2 → nCO2 + H2O16.66×103n×[12n + (2n+2)]= 236×103n ≈ 12Therefore, Molecular formula of hydrocarbon = C12H26