Question: how many litres of water must be added to 1 litre of an aqueous solution?
Answer: Ie., to 1 liter of an acid solution with pH=1 (whose concentration is 0.1 N), 9 liters of water should be added to make the pH of the solution to 2. !!! Devender Singh, MSc Chemistry & Board of High School and Intermediate Education, Uttar Pradesh, Chaudhary Charan Singh Univer…