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#6. If a sample of lemon juice has a pH of 1.8, vinegar has a pH of 2.5, tomato juice is 4.4, human blood is 7.4, a particular brand of oven cleaner is 11.6, and a sample of lye is 13.9, then use these pH's to determine the relative acidity or basicity for the following comparisons. (a) How much more acidic is lemon juice than: vinegar, tomato juice? (b) How much more basic is lye than: the oven cleaner, human blood? (c) Which of the listed samples is closest to the pH of 7.0 of pure water? How far away is it as a multiplier of the concentration of hydrogen ions in the substance? Is it more acidic or less acidic than water? ((1) Which of the listed samples is furthest from the pH of 7.0 of pure water? How far away is it as a multiplier of the concentration of hydrogen ions in the substance? Is it more acidic or less acidic than water