An agricultural scientist analysed the juice vesicles of a specific variety of lemon to determine the acidity of their central vacuoles. They obtained the following mean measurements for a single vacuole:
Calculate the mean H+\text{H}^+H+ ion concentration within a vacuole in this juice vesicle. Give your answer in mol dm−3\text{mol dm}^{-3}mol dm−3.
The formula to calculate pH is:
pH=−log10[H+] \text{pH} = -\log_{10} [\text{H}^+] pH=−log10[H+]where [H+][\text{H}^+][H+] is the hydrogen ion concentration in mol dm−3\text{mol dm}^{-3}mol dm−3. Use your calculation from part (a) to find the mean pH of the vacuoles. Give your answer to 2 significant figures.
