An astronaut receives the energy required in his body by the combustion of 34gm of sucrose per hour. How much oxygen he has to carry along with him for his energy requirement in a day? 

Explanation

Given sucrose quantity required per hour = 34 gms
`:.` Sucrose quantity required per a day = 34 xx 24 gms
Chemical equation of combustion of sucrose
`C_(12)H_(22)O_(11)+12O_(2)to 12CO_(2)+11 H_(2)O+"Energy"`
1 mole sucrose `to` 12 moles of Oxygen
342 gms of sucrose `to 12 xx 32 ` gms of Oxygen
34 xx 24 gs of sucrose `to` ?
`(34 xx24)/(342)xx12xx32=916.21 " gms"`
`:.` The astronaut require 916.21 gms of Oxygen per a day