What does the pH of a solution tell you?
(a) What effect does the concentration of H+ (aq) ions have on the nature of a solution?
(b) What effect does the concentration of OH− ions have on the nature of a solution?
(c) Someone put some universal indicator paper into vinegar. The pH is 3. What does this tell you about the vinegar?
(d) Someone put some universal indicator paper onto wet soap. the pH is 8. What does this tell you about the soap?
(e) State whether a solution is acidic. alkaline or neutral if its pH is :
(i) 9
(ii) 4
(iii) 7
(iv) 1
(v) 10
(vi) 3
(a) A solution has a pH of 7. Explain how you would :
(i) increase ist pH; (ii) decrease its pH;
(b) If a solution changes the colour of litmus from red to blue, what can you say about its pH?
(c) What can you say about the pH of a solution, that liberates carbon dioxide from sodium carbonate ?
what do you mean by the ph value of a solution