The useful idea
- The useful idea
In chemistry, pH ( or ; pee-AYCH) is a logarithmic scale used to specify the acidity or basicity of aqueous solutions.
- How it works
Acidic solutions (solutions with higher concentrations of hydrogen (H+) cations) are measured to have lower pH values than basic or alkaline solutions.
- Why it matters
While the origin of the symbol 'pH' can be traced back to its original inventor, and the 'H' refers clearly to hydrogen, the exact original meaning of the letter 'p' in pH is still disputed; it has since
Why this matters
Look for PH the next time you notice this pattern in everyday life.
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Look for PH the next time you notice this pattern in everyday life.
Test your recall
Which idea belongs to the explanation of PH?
- The useful idea — correct
- How it works
- Why it matters
In chemistry, pH ( or ; pee-AYCH) is a logarithmic scale used to specify the acidity or basicity of aqueous solutions.