Question

The human body needs at least 1.03 x 10-^2 mol O2 every minute. If all of this oxygen is used for the

Answer 1

Answer:

0.3093 g of glucose are consumed each minute by the body.

Explanation:

• During cellular respiration glucose is broken down in presence of oxygen to yield energy, water and carbon dioxide.
• The equation for the reaction taking place during cellular respiration is;

C₆H₁₂O₆ + 6O₂ → 6H₂O + 6CO₂

We are required to calculate the amount of glucose in grams;

Step 1: Calculate the moles of glucose broken down

From the equation, the mole ratio of glucose to Oxygen is 1 : 6

Moles of Oxygen in a minute is 1.03 × 10^-2 moles

Therefore, moles of glucose will be;

= (1.03 × 10^-2)÷6

= 1.717 × 10^-3 moles

Step 2: Mass of glucose

Mass is given by multiplying the number of moles with molar mass

mass = moles × molar mass

Molar mass glucose is 180.156 g/mol

Therefore;

Mass = 1.717 × 10^-3 × 180.156 g/mol

         = 0.3093 g

Hence, 0.3093 g of glucose are consumed each minute by the body.