Question

products- glucose (C⁶H¹²O⁶),oxygen (O²)​

Answer 1

Answer:

1) Glucose molecular formula: C6H12O6

Molecular weight: (6x12)+(12x1)+(6x16)=180

(2) Oxygen molecular formula: O2

Molecular weight: 2x16=32

(3) Carbon dioxide molecular formula: CO2

Molecular weight: (1x12)+(2x16)=44

(4) Water molecular formula: H2O

Molecular weight: (2x1)+(1x16)=18

Now the equation for reaction between glucose and oxygen:

C6H12O6 + 6(O2) = 6(CO2) + 6(H2O)

In terms of mass

180 + 192 = 264 + 108

It says 180 grams of glucose requires 192 grams of oxygen to complete the reaction.

Hence 25 grams of glucose require 26.66 grams of oxygen to complete reaction.