8. What is the pH in the preceding problem if the mixture consists of 0.1 M acetic acid and 0.25 M sodium acetate? 9. Calculate the ratio of lactic acid and lactate required in a buffer system of pH 5.00. The pKa of lactic acid is 3.86 10. During fermentation of wine, a buffer system consisting of tartaric acid and potassium hydrogen tartrate is produced by biochemical reaction. Assuming that at some time the concentration of potassium hydrogen tartrate is twice that of tartaric acid, calculate the pH of the wine. pKa of tartaric acid is 2.96.

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A: 1. Given,

Q: Which

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A:

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A:

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.