An acidic rinse has a pH of 2. It is diluted with water until its concentration of H+\mathrm{H^{+}}H+ ions is 100 times smaller.
The diluted rinse is compared with a second solution that has a pH of 7.
Calculate how many times greater the concentration of H+\mathrm{H^{+}}H+ ions is in the diluted rinse than in the second solution.
112 exam-style questions on OCR GCSE Chemistry 3.3 Types of chemical reactions, covering 3.3.1 Oxidation and reduction in terms of oxygen, 3.3.2 Acids, alkalis and neutralisation, 3.3.3 The pH scale and measuring pH, 3.3.4 Oxidation and reduction in terms of electrons, 3.3.5 Dilute and concentrated, weak and strong acids, and 3.3.6 Hydrogen ion concentration and pH. Each one has a worked solution and a mark scheme showing where the marks go.