Solutions A and B are two different acid solutions of the same concentration in mol dm−3\text{mol dm}^{-3}mol dm−3. Solution A has a pH of 5.25 and solution B has a pH of 4.25. What is the concentration of hydrogen ions in solution B compared with that in solution A?
ten times lower
ten times higher
higher by a factor of 5.25/4.255.25/4.255.25/4.25
lower by a factor of 4.25/5.254.25/5.254.25/5.25
Practise Edexcel GCSE Chemistry Acids with exam-style questions for Foundation and Higher tier. 276 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
