DP Chemistry (last assessment 2024)

Question 18M.2.hl.TZ1.g

[Maximum mark: 1]

18M.2.hl.TZ1.g

Urea, (H₂N)₂CO, is excreted by mammals and can be used as a fertilizer.

Calculate the maximum volume of CO₂, in cm³, produced at STP by the combustion of 0.600 g of urea, using sections 2 and 6 of the data booklet.

[1]

Markscheme

«V = $\frac{{{\text{0.600 g}}}}{{{\text{60.07 g mo}}{{\text{l}}^{ - 1}}}}$ $\times$ 22700 cm³ mol^–1 =» 227 «cm³»

[1 mark]

Syllabus sections