DP Chemistry (last assessment 2024)
Question 22M.1.sl.TZ1.1
| Date | May 2022 | Marks available | [Maximum mark: 1] | Reference code | 22M.1.sl.TZ1.1 |
| Level | sl | Paper | 1 | Time zone | TZ1 |
| Command term | Solve | Question number | 1 | Adapted from | N/A |
1.
[Maximum mark: 1]
22M.1.sl.TZ1.1
0.2 mol of sodium hydrogencarbonate is decomposed by heating until constant mass.
2 NaHCO3 (s) → Na2CO3 (s) + H2O (g) + CO2 (g)
How many moles of gas are produced?
A. 0.1
B. 0.2
C. 0.3
D. 0.4
[1]
Markscheme
B