Mole ConceptHard
Question
The hourly energy requirement of an astronaut can be satisfied by the energy released when 34 g of sucrose (C12H22O11) are burnt in his body. How many g of oxygen would be needed to be carried in space capsule to meet his requirement for one day -
Options
A.916.2 gm
B.91.62 gm
C.8.162 gm
D.9.162 gm.
Solution
Use reaction C12H22O11 + 12O2 → 12CO2 + 11H2O.
In 24 hr. moles of sucrose consumed =
× 24.
∴ In 24 hr. moles of O2 required =
× 24 × 12. (according to stoichiometry).
mass of O2 required =
× 24 × 12 × 32 = 916.2 gm.
In 24 hr. moles of sucrose consumed =
× 24.∴ In 24 hr. moles of O2 required =
× 24 × 12. (according to stoichiometry).mass of O2 required =
× 24 × 12 × 32 = 916.2 gm.Create a free account to view solution
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