Question

calculate the grams of carbon are in 25.0g of sucrose, C12H22O11

Answer 1

1 mole of sucrose has 12 moles of carbon.

Number of moles = Mass/molar mass

Molar mass of sucrose = 342.3 g/mol

Moles of sucrose = 25/342.3

= 0.073 moles

Moles of carbon = 12 × 0.073 mol

= 0.876 moles

Molar mass of carbon = 12.0 g/mol

Mass of carbon = 12 g/mol × 0.876 mol

= 10.51 grams

Answer = 10.51 grams