Chemistry · Paper 2 · Foundation + Higher · C10
Measure pH with a suitable indicator or calibrated pH meter. Use equal measured volumes when comparing dissolved-solid residues. Record the source, volume, pH and residue mass. The data shown are invented for practice. A pH of 7 alone does not prove a sample is potable.
No timer. Read the explanation after each answer.
Daily 5 · Exam practice · Revision sheet ↓
Foundation + Higher · C10. Eight core lessons; alternative metal extraction is Higher Tier only.
AQA Combined Science Trilogy 8464 · 5.10.1.2 · Required practical 13. Original notes, questions and diagrams. Models are simplified; teaching data are illustrative.