DP Chemistry (last assessment 2024)
Question 22M.1.hl.TZ1.2
| Date | May 2022 | Marks available | [Maximum mark: 1] | Reference code | 22M.1.hl.TZ1.2 |
| Level | hl | Paper | 1 | Time zone | TZ1 |
| Command term | Solve | Question number | 2 | Adapted from | N/A |
2.
[Maximum mark: 1]
22M.1.hl.TZ1.2
0.02 mol of zinc is added to 10.0 cm3 of 1.0 mol dm–3 hydrochloric acid.
Zn (s) + 2HCl (aq) → ZnCl2 (aq) + H2 (g)
How many moles of hydrogen are produced?
A. 0.005
B. 0.01
C. 0.02
D. 0.04
[1]
Markscheme
A
Examiners report
Higher scoring candidates managed to estimate moles of gas produced in the reaction of zinc with hydrochloric acid solution.