Chemistry · KS3 Y8 · Acids & Alkalis

Measuring pH accurately

Measuring pH accuratelyFree4:28Heddy Score 3 of 7, below the standard

What you need to know

  • Calibrate a pH meter using buffer solutions of known pH.
  • Rinse the electrode with distilled water between solutions to avoid contamination.
  • Immerse the electrode in the sample and wait for a stable reading.
  • Store the electrode correctly so it does not dry out.

In this clip

Runs 4:28, from 0:04 to 4:32 of the full video.

Heddy Score3/7, Below the standard
See the seven stars
  • Trusted source · passed. The creator's own upload, live and playable here.
  • On the map · not judged yet. A teacher watched it: it mainly teaches this map topic.
  • Spec-true · not judged yet. Accurate, and right for the current UK specification.
  • Focused · passed. One idea, short enough to watch in one go.
  • Accessible · passed. Good captions, clear sound and pictures.
  • Safe for children · not judged yet. Right for 11 to 16 year olds, with no sales pitch.
  • Proven · not judged yet. Earned from our students: they learn from it, find it helpful and watch it to the end.
★ passed · ☆ pending · ✕ failed
Our students

Not enough students yet

Our own students' answers. These are what move ★7 Proven.
On YouTube

921K views · 5.79K likes · Bio-Rad Laboratories 81.8K subscribers

As reported by YouTube on 2026-11-02. Not part of the Heddy Score.
How the Heddy Score works

Why we picked it

Demonstrates calibration, rinsing, measurement and storage of a pH meter.

Bio-Rad Laboratories on YouTubechecked 2026-10-20

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