DP Chemistry (last assessment 2024)
Question 21N.1.sl.TZ0.1
| Date | November 2021 | Marks available | [Maximum mark: 1] | Reference code | 21N.1.sl.TZ0.1 |
| Level | sl | Paper | 1 | Time zone | TZ0 |
| Command term | Solve | Question number | 1 | Adapted from | N/A |
1.
[Maximum mark: 1]
21N.1.sl.TZ0.1
What is the number of hydrogen atoms in 2.00 moles of Ca(HCO3)2?
Avogadro’s constant, L or NA: 6.02 × 1023 mol−1
A. 2.00
B. 4.00
C. 1.20 × 1024
D. 2.41 × 1024
[1]
Markscheme
D