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Ch. 2 - Biochemistry Basics
Norman-McKay- Microbiology: Basic and Clinical Principles 2nd Edition
Norman-McKay2nd EditionMicrobiology: Basic and Clinical PrinciplesISBN: 9780137661619Not the one you use?Change textbook
Chapter 2, Problem 5

Select the false statement about salts.
a. Salts are ionic compounds.
b. Salts are formed when an acid and a base react with each other.
c. Salts consist of an anion and a cation component.
d. Salts may be inorganic.
e. Salts are usually acids.
f. Salts are usually hydrophilic.

Verified step by step guidance
1
Step 1: Understand the definition of salts in chemistry and microbiology. Salts are ionic compounds formed from the neutralization reaction between an acid and a base, consisting of positively charged ions (cations) and negatively charged ions (anions).
Step 2: Analyze each statement individually based on the definition and properties of salts:
- a. Salts are ionic compounds. (True, because salts are formed from ions.)
- b. Salts are formed when an acid and a base react with each other. (True, this is the neutralization reaction.)
- c. Salts consist of an anion and a cation component. (True, salts always have both ions.)
- d. Salts may be inorganic. (True, many salts are inorganic, such as sodium chloride.)
- e. Salts are usually acids. (This is likely false, as salts are generally neutral or basic, not acidic.)
- f. Salts are usually hydrophilic. (True, many salts dissolve well in water due to their ionic nature.)
Step 3: Identify the false statement by comparing each option to the known properties of salts. The false statement is the one that contradicts the typical characteristics of salts.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Formation of Salts

Salts are formed through a neutralization reaction between an acid and a base, resulting in ionic compounds composed of cations and anions. This process typically produces water and a salt, illustrating the fundamental acid-base interaction.
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Chemical Nature of Salts

Salts are ionic compounds made up of positively charged ions (cations) and negatively charged ions (anions). They can be inorganic or organic and generally do not exhibit acidic properties themselves, distinguishing them from acids.
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Properties of Salts

Salts are usually hydrophilic due to their ionic nature, allowing them to dissolve readily in water. Their solubility and ionic composition influence their behavior in biological and chemical systems, making them important in various physiological processes.
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Related Practice
Textbook Question

Acids donate _______________________ to an aqueous solution, which will lead to a(n) _______________________ in pH. In contrast, bases donate _______________________ to an aqueous solution and will _______________________ the pH. The pH of a solution with more OH

than H+ will have a(n) _______________________ pH.

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Textbook Question

Determine the following:

a. The molarity of a solution with 0.5 moles of glucose per liter of water.

b. The concentration (in weight/volume percent) of a solution that contains 20 grams of sodium chloride per liter of water.

c. The concentration (in mg/dL) of a solution with 1 gram of lactic acid per 100 mL of solution.

d. The molarity of a solution with 1 mmol of solute in 1 L of water.

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Textbook Question

Indicate the true statements and then correct the false statements so that they are true.

a. Isotopes are atoms with differing numbers of protons and the same number of neutrons.

b. A cation is a positive ion.

c. Redox reactions create ions.

d. Equal sharing of electrons leads to polar covalent bonds.

e. Ions are charged atoms.

f. CO2 is an inorganic molecule.

g. Isomers have the same molecular formula but different structures.

h. Adding a base to a solution will decrease the pH.

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Textbook Question

Write the molecular formula for a substance that contains two oxygen molecules, two carbons, and four hydrogen atoms. Be sure to follow the standard conventions of writing molecular formulas.

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Textbook Question

Select all of the compounds from the following list. If it is not a compound, then state what it is.

a. H2O

b. HCO3-

c. O2

d. H2

e. Li2+

f. C6H12O6

g. H+

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Textbook Question

What ions result when hydrogen donates one electron to fluorine?

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