The table below shows the pH values of some different foods.pH of FoodsSubstanceApproximate pH7.96Egg whitesGraham crackers7.92Cranberry juice2.30Conch snails8.40Based on the pH level, which food is most likely to have a sour taste?A Egg WhitesB Graham CrackersCranberry JuiceD Conch snails

A pH refers to the unit of measure that determines the acidity or alkalinity of the solution. Its…

Answered: The table below shows the pH values of…

Body Structures & Functions

12th Edition

ISBN:9781285695495

Author:Scott

Publisher:Scott

Chapter2: Chemistry Of Living Things

Section: Chapter Questions

Problem 9RQ

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Figure 2.12 A pH scale. Here, red dots signify hydrogen ions (H+) and blue dots signify hydroxyl ions (OH). Also shown are the approximate pH values for some common solutions. This pH scale ranges from 0 (most acidic) to 14 (most basic). A change of one unit on the scale corresponds to a tenfold change in the amount of H+ ions. Photos, JupiterImages Corporation. Figure It Out: What is the approximate pH of cola?
Using a pH meter, you find the pH of an unknown solution to be 8.0. How would you describe this solution? a. weakly acidic b. strongly acidic c. weakly basic d. strongly basic
For the equilibrium below, pKa1 = 7.9 and pKa2 = 10.1. At what pH is [HA-] equal to [A2-]? H2A <=> H+ + HA- <=> 2H+ + A2- a) pH = 7.9 b) pH < 7.9 c) pH > 10.1 d) pH = 10.1
The pH scale shows availability of reactive hydrogen ions (H+) in a liquid. The scale is logarithmic, so milk has 10 times as many H+ ions as pure water, for a given volume. How many more H+ ions does soda pop have compared to pure water? Write the number only.
Which of the following is the most basic? A. Group of answer choices B. Ocean water (pH 8) C. Baking soda (pH 9) D. Drano (pH 14) E. Vinegar (pH 3) F. Pure coffee (pH 5)
if we want to find out which element are safe for humans to consume when combined as a salt then which of the following might be the best way to predict the elements that are safest to eat?
The PH formula is given as PH=-log(H+). The H+ is the number of free ions of hydrogen. A seven PH is considered neutral. Discuss what having a low PH and a high PH means. What does a 12 PH mean? How about a 2? Which is more caustic? Is either a good thing at extremely high or low values? Explain fully as to what a PH means to you and what you use it for.
Amelia tests several substances in her house to determine their pH values and records the results. Substance pH Lemon juice 2.3 Tap water 6.7 Bleach 12.3 Soapy water 11.7 Can of tomatoes 4.5 Dishwasher detergent 10.9 What do the basic substances have in common? A They are all used in cooking. B They are all used in cleaning products. C They are all clear or transparent. D They are all sour tasting when eaten.
Based on the Henderson-Hasselbalch equation (shown below), calculate the pH when the ratio of acetic acid to acetate is 10 to 1 (the pKa of acetic acid is 4.76). A. 1.00 B. 3.76 C. 4.76 D. 5.76
When comparing pH, a solution with a pH of 5 contains 100 times the amount of H+ when compared to a solution with a pH of 7.
What is the pH of a grapefruit that contains 0.007 M citric acid solution (CHgO7)? C6H307(aq) + H₂O(E)= CsH707 (aq) + H₂O*(aq) K₂=7.5 x 104 Round your answer to 2 decimal places.
Which of the following statements is true? a. Acids and bases cannot mix together. b. Acids and bases will neutralize each other. c. Acids, but not bases, can change the pH of a solution. d. Acids donate hydroxide ions (OH–); bases donate hydrogen ions (H+).

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