Question

if you put a strong acid in 100 ml water and then you put the same amount of a week acid in 100 ml of water why would the ph be lower in the beaker with the strong acid

Answer 1

Adding water to an acid or base will change its pH. Water is mostly water molecules so adding water to an acid or base reduces the concentration of ions in the solution. When an acidic solution is diluted with water the concentration of H + ions decreases and the pH of the solution increases towards 7.

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