DP Chemistry (last assessment 2024)
Question 22M.2.sl.TZ2.c(i)
| Date | May 2022 | Marks available | [Maximum mark: 1] | Reference code | 22M.2.sl.TZ2.c(i) |
| Level | sl | Paper | 2 | Time zone | TZ2 |
| Command term | State | Question number | c(i) | Adapted from | N/A |
c(i).
[Maximum mark: 1]
22M.2.sl.TZ2.c(i)
Sulfur trioxide is produced from sulfur dioxide.
2SO2 (g) + O2 (g) 2SO3 (g) ΔH = −196 kJ mol−1
State the product formed from the reaction of SO3 with water.
[1]
Markscheme
sulfuric acid/H2SO4 ✔
Accept “disulfuric acid/H2S2O7”.
Examiners report
A very well answered question. 70% of the candidates stated H2SO4 as the product from the reaction of SO3 with water.
