DP Chemistry (last assessment 2024)
Question 17N.2.sl.TZ0.c
| Date | November 2017 | Marks available | [Maximum mark: 1] | Reference code | 17N.2.sl.TZ0.c |
| Level | sl | Paper | 2 | Time zone | TZ0 |
| Command term | State | Question number | c | Adapted from | N/A |
c.
[Maximum mark: 1]
17N.2.sl.TZ0.c
Trends in physical and chemical properties are useful to chemists.
State an equation for the reaction of phosphorus (V) oxide, P4O10 (s), with water.
[1]
Markscheme
P4O10 (s) + 6H2O (l) → 4H3PO4 (aq)
Accept “P4O10 (s) + 2H2O (l) → 4HPO3 (aq)” (initial reaction).
