Question

What mass of oxygen would be required for the complete combustion of 10 Grams of glucose?

Answer 1

For the complete combustion of 10 g of glucose 11.52 g of oxygen is required.

Step-by-step explanation:

Given data:

Mass of glucose = 10 g

Mass of oxygen required for complete combustion = ?

Solution:

Chemical equation:

C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O

Now we will convert the given mass of glucose into number of moles.

Number of moles = mass/ molar mass

Number of moles = 10 g/ 180.156 g/mol

Number of moles = 0.06 mol

Now we will compare the moles of glucose with oxygen.

C₆H₁₂O₆ : O₂

1 : 6

0.06 : 6×0.06 = 0.36 mol

Mass of oxygen required:

Mass = number of moles × molar mass

Number of moles = 0.36 mol × 32 g/mol

Number of moles = 11.52 g

For the complete combustion of 10 g of glucose 11.52 g of oxygen is required.