APFIVE Ranking Solutions by Increasing pH
Consider four 0.1 M solutions: a strong acid (HCl), a weak acid (acetic acid, HC2H3O2), neutral water, and a weak base (NH3). Rank these species in order of increasing pH (i.e. from most acidic to most basic). List your answer as an ordering of the four items separated by commas.
| Solution | Example Compound | Approx. pH |
|---|---|---|
| Strong acid | $$\mathrm{HCl}$$ | ~1 |
| Weak acid | $$\mathrm{HC_2H_3O_2}$$ | ~3-4 |
| Neutral water | $$\mathrm{H_2O}$$ | 7 |
| Weak base | $$\mathrm{NH_3}$$ | ~8-9 |
A
HC2H3O2, water, HCl, NH3
B
HCl, HC2H3O2, water, NH3
C
HC2H3O2, HCl, water, NH3
D
HCl, water, HC2H3O2, NH3
Question Leaderboard
| Rank | |||||
|---|---|---|---|---|---|
| #1 | chanisaac2009 | 1 | 1 | 0m 00s | 100 |
| #2 | chenk0596 | 1 | 1 | 1m 42s | -2 |
| #3 | priyamk1122008 | 1 | 1 | 3m 04s | -84 |
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