DP Chemistry (last assessment 2024)
Question 18M.1.sl.TZ2.2
| Date | May 2018 | Marks available | [Maximum mark: 1] | Reference code | 18M.1.sl.TZ2.2 |
| Level | sl | Paper | 1 | Time zone | TZ2 |
| Command term | Solve | Question number | 2 | Adapted from | N/A |
2.
[Maximum mark: 1]
18M.1.sl.TZ2.2
What is the number of atoms of oxygen in 2.0 mol of hydrated sodium carbonate, Na2CO3•10H2O? Avogadro’s constant, L or NA: 6.02 × 1023 mol–1
A. 6
B. 26
C. 3.6 × 1024
D. 1.6 × 1025
[1]
Markscheme
D