Please answer the following question: Q: What is the scale on which acidity is measured? Read this paragraph and choose the correct option from the provided answers: The concentration of hydronium ions in a solution is known as acidity. In pure water, the concentration of hydronium ions is very low; only about 1 in 10 million water molecules naturally breaks down to form a hydronium ion. As a result, pure water is essentially neutral. Acidity is measured on a scale called pH , as shown in Figure below . Pure water has a pH of 7, so the point of neutrality on the pH scale is 7. Choices: - m - hp - g - ph A:
A:
ph