Business
Engineering
Math
Science
Social Science
Introductory Chemistry: A Foundati...
Solutions
Introductory Chemistry: A Foundati...
. Why do scientists tend to express the acidity of a solution in terms of its Ph, rather than in terms of the molarity of hydrogen ion present? How is pH defined mathematically?
Interpretation:
The reason for scientists to express the acidity of a solution in terms of its pH rather than in terms of the molarity of hydrogen ions present should be explained.
Concept Introduction:
It is important to have a scale to compare the strength of a property. Acidity of a certain solution is a critical parameter that one must consider in comparing reaction conditions, yields and activity of the enzymes. Therefore it is important to have an easy and understandable scale that one gets a clear idea about the acidity of a given solution.
Assume that the [H+ (aq)] of a given solution is 10-4 M. This is typically smaller quantity in terms of concentration. But if one uses the pH scale;
pH=-log1 0 (10-4 M) = 4
Hence it is much easier to represent the hydrogen ion concentration using the scale. Also, if one needs to compare the acidity strength of different solutions, this pH scale becomes useful.
Depending on the value of the solubility product of water the integer values which pH can attain could be limited from 1-14. Hence, chemists could get a much representative idea about the acidity by using the scale.
How the scale extends from 1 to 14 can be shown as below?
Also,
Here,
Taking natural log on both sides of the equation (1) and multiplying both sides by negative sign
Chapter 16 Solutions
Additional Science Solutions
Find more solutions based on key concepts
Show solutions addA small crystal of CaCl2 that weighs 0.12 g contains 6.5 1020 formula units of CaCl2. What is the total number...
General Chemistry - Standalone book (MindTap Course List)
What volume of 0.0100 M NaOH must be added to 1.00 L of 0.0500 M HOCl to achieve a pH of 8.00?
Chemistry
Creatinine, C4H7N3O, is a by-product of muscle metabolism, and creatinine levels in the body are known to be a ...
Chemistry: An Atoms First Approach
In 1993, a football coach in the United States accused an opposing team's punter of using a football inflated w...
Inquiry into Physics
Compare and contrast the functions of ATP, creatine phosphate, and glycogen in muscle contraction.
Biology (MindTap Course List)
An average person sneezes about three times per day. Estimate the worldwide number of sneezes happening in a ti...
College Physics
Most water-soluble vitamins are not stored in tissues to any great extent. T F
Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)
If body organs could talk, what might some of them say to alcohol about its role in metabolism and disease deve...
Understanding Nutrition (MindTap Course List)
All cells have these three things in common: ______. a. cytoplasm, DNA, and organelles with membranes b. a plas...
Biology: The Unity and Diversity of Life (MindTap Course List)
List the three kinds of fronts on this map with a general statement of their location. The fourth kind of front...
Fundamentals of Physical Geography
22. Classify each of the following as a law or a theory: a. In a chemical reaction, energy is neither created n...
Chemistry In Focus
Write the molecular formula and calculate the molar mass for each of the molecules shown here. Which has the la...
Chemistry & Chemical Reactivity
How many heartbeats are there in a lifetime?
College Physics
1-82 When the astronauts walked on the Moon, they could make giant leaps in spite of their heavy gear. (a) Why ...
Introduction to General, Organic and Biochemistry
The passive movement of a solute through a membrane protein down its concentration gradient is an example of __...
Human Biology (MindTap Course List)
How are astronomers able to explore the layers of the Sun below the photosphere?
Horizons: Exploring the Universe (MindTap Course List)
KEY TERMS 1. physics (intro) 2. position (2.1) 3. motion 4. scalar (2.2) 5. vector 6. average speed 7. distance...
An Introduction to Physical Science
The value of qelect for the given system at 10,000 K is to be recalculated. Whether the conclusion about the ef...
Physical Chemistry
Draw the structure of the disaccharide formed by two moles of . -mannose (see Question 19).
Chemistry: Principles and Reactions
Noble gases: a.have low boiling points. b.are all gases at room temperature. c.are also called inert gases. d.a...
Chemistry for Today: General, Organic, and Biochemistry
2.75 Chlorine has only two isotopes, one with mass 35 and the other with mass 37. One is present at roughly 75%...
Chemistry for Engineering Students
In phloem, organic compounds flow through ___________. a. collenchyma cells c. vessels b. sieve elements d. tra...
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Noah is a former late preterm male born at 36 weeks gestation. He weighed 2000 g and was small for gestational ...
Nutrition Through The Life Cycle
What are the three most common lipids in living organisms? How do their structures differ?
Biology: The Dynamic Science (MindTap Course List)
Match the phase of cell division with the following diagrams. In these cells, 2n = 4. a. anaphase of meiosis I ...
Human Heredity: Principles and Issues (MindTap Course List)
5. When the systemic blood pressure increases, the aortic and carotid sinus baroreceptors initiate reflexes tha...
Cardiopulmonary Anatomy & Physiology
8. List three units for time and give one example for each.
Chemistry In Focus
The third and fourth steps in the synthesis of Hagemann's ester from ethyl acetoacetate and formaldehyde [Probl...
Organic Chemistry
A sample of H2C2O4.2H2O of mass 3.35 g is heated to drive off the waters of hydration (designated separately in...
Chemistry for Engineering Students
Draw the structure of the aldehyde or ketone produced when each of the alcohols in Problem 14-64 is oxidized.
General, Organic, and Biological Chemistry
The nearest neutron star (a collated star made primarily of neutrons) is about 3.00 1018 m away from Earth. Gi...
College Physics
When you read that at least 19,000 children of ages 5 and younger die each day (13 per minute) from preventable...
Environmental Science (MindTap Course List)
Which of the following is considered a risk factor for low vitamin D status? a. Dark skin pigmentation b. Light...
Nutrition Through the Life Cycle (MindTap Course List)
A grating with 250 grooves/mm is used with an incandescent light source. Assume the visible spectrum to range i...
Physics for Scientists and Engineers
Consider the accompanying graph, which compares the losses of calcium from the experimental and control sites i...
Environmental Science (MindTap Course List)
Draw the structure of the predominant organic product formed in each of the following reactions involving alcoh...
Organic And Biological Chemistry
Endothermic processes are (a) always spontaneous (b) sometimes spontaneous (c) never spontaneous
Chemistry & Chemical Reactivity
Hydrogen peroxide solution, H2O2(aq), spontaneously decomposes into liquid water and gaseous oxygen. What STP v...
Introductory Chemistry: An Active Learning Approach
Many types of carbonyl condensation reactions have acquired specialized names, after the nineteenth-century org...
Organic Chemistry
Review. A 65.0-kg bungee jumper steps off a bridge with a light bungee cord tied to her body and to the bridge....
Physics for Scientists and Engineers with Modern Physics
What evidence shows that the Universe is expanding? What evidence shows that the Universe began with a Big Bang...
Foundations of Astronomy (MindTap Course List)
A hungry bear weighing 700 N walks out on a beam in an attempt to retrieve a basket of goodies hanging at the e...
Physics for Scientists and Engineers, Technology Update (No access codes included)
How is heat different from temperature?
Oceanography: An Invitation To Marine Science, Loose-leaf Versin
Given the arrangement of capacitors in Figure P27.23, find an expression for the equivalent capacitance between...
Physics for Scientists and Engineers: Foundations and Connections
Arrange the groups in order in which they evolved. ____ 1(earliest) a. Jawless fishes ____ 2 b. Birds ____ 3 c....
Biology: The Unity and Diversity of Life (MindTap Course List)
