DP Chemistry (last assessment 2024)
Question 23M.2.SL.TZ2.a
| Date | May 2023 | Marks available | [Maximum mark: 2] | Reference code | 23M.2.SL.TZ2.a |
| Level | SL | Paper | 2 | Time zone | TZ2 |
| Command term | Suggest | Question number | a | Adapted from | N/A |
a.
[Maximum mark: 2]
23M.2.SL.TZ2.a
Suggest an experimental method that could be used to determine the rate of reaction.
[2]
Markscheme
«measure change in»
mass
OR
pressure
OR
volume of gas/CO2 produced
OR
«intensity of» colour
OR
«electrical» conductivity
OR
pH ✓
with time ✓
Accept any of the following for M1:
perform experiment on balance
OR
use pressure probe
OR
collect gas/gas syringe
OR
use colorimeter
OR
use conductivity meter
OR
use pH meter
Do not accept “measure rate of change” for M2.
