EasyChemistryHigh School (9–10)GeneralAcids, Bases and Salts › pH and NeutralisationConceptualBoard Exam
Say whether each solution is acidic, neutral or basic, and which is the strongest acid.
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
Say whether each solution is acidic, neutral or basic, and which is the strongest acid.
- pH , (b) pH , (c) pH , (d) pH , (e) pH .
Need a reminder? The key ideaShow
pH runs from to : below acidic, neutral, above basic. , so for the pH is , and one step is a factor of ten. For bases, pH pOH. Diluting a strong acid ten times raises its pH by .
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. Acidic: (a) and (d). Neutral: (b). Basic: (c) and (e).
Step 2. The strongest acid is (d), pH .
Answer: as above.
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