Solution with explaination

Solution with explaination 31. A person requires 2870 Kcal of energy to lead norrnal daily life. If heat of combustion of cane sugar is —1349 Kcal, then his daily consumption of sugar is: (1) 728g (3) 342g (2) 0.728g (4) 0.342g

Dear student,
 Molar mass of cane sugar (C12H22O11) is 342.29 g/mol.
 the heat of combustion reaction for sugar for 1 mol it is -1349 Kcal. 
For 2870 Kcal , total moles would be = 2870/1349 = 2.127 moles. 
So, Weight of sugar = 2.127*342 = 728 g 
with regards! 

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