PHGY 216: MODULE 5 SECTION 1 QUESTIONS WITH
VERIFIED ACCURATE ANSWERS
What is the main difference between an acid and a base? - Answers - The main
difference between an acid and a base is the concentration of hydrogen ions (H+) and
hydroxide ions (OH-) present in each solution.
How does an acid differ from a base in terms of hydrogen ion concentration? - Answers
- Acids have a higher concentration of hydrogen ions (H+) than bases, which have a
higher concentration of hydroxide ions (OH-).
What is the pH range for acids - Answers - pH below 7
what is the pH range for bases - Answers - pH above 7
What are some common properties of acids? - Answers - Acids typically have a sour
taste, can be corrosive, and react with metals to produce hydrogen gas. They also turn
blue litmus paper red and have a pH less than 7.
What are some common properties of bases? - Answers - Bases typically have a bitter
taste, feel slippery or soapy to the touch, and can be caustic. They turn red litmus paper
blue and have a pH greater than 7.
What is the neutral pH value, and what substance has this pH? - Answers - Answer 6:
The neutral pH value is 7, and pure water has this pH. Neither acidic nor basic, pure
water has an equal concentration of hydrogen ions and hydroxide ions.
what does pH stand for - Answers - potential of hydrogen
How is pH calculated? - Answers - pH is calculated as the negative logarithm (base 10)
of the concentration of hydrogen ions (H+) in a solution. The formula for pH is pH = -
log[H+]
What is the pH of a neutral solution - Answers - 7
How does a change in pH of one unit affect the concentration of hydrogen ions? -
Answers - A change in pH of one unit represents a tenfold change in the concentration
of hydrogen ions (either an increase or a decrease depending on the direction of the pH
change). For example, a solution with a pH of 3 has ten times the concentration of
hydrogen ions as a solution with a pH of 4.
How can pH be measured? - Answers - pH can be measured using pH test strips, a pH
meter, or a colorimetric pH indicator.
, What is acidosis? - Answers - Acidosis is a medical condition that occurs when the pH
of the blood drops below normal, typically below a pH of 7.35. This can be caused by an
excess of acid in the blood or a loss of bicarbonate, which helps to regulate pH levels.
What is alkalosis? - Answers - Alkalosis is a medical condition that occurs when the pH
of the blood rises above normal, typically above a pH of 7.45. This can be caused by a
loss of acid in the blood or an excess of bicarbonate.
What are the broader impacts of acidosis on the body? - Answers - Acidosis can cause
a range of symptoms and complications, including confusion, fatigue, shortness of
breath, nausea, vomiting, and coma. It can also lead to electrolyte imbalances, which
can affect the functioning of the heart, muscles, and other organs.
What are the broader impacts of alkalosis on the body? - Answers - Alkalosis can cause
symptoms such as muscle twitching, tingling sensations, dizziness, and spasms. In
severe cases, it can cause confusion, seizures, and even death. Alkalosis can also
affect the functioning of the heart, muscles, and other organs.
What are some potential causes of acidosis? - Answers - Some potential causes of
acidosis include kidney failure, diabetes, dehydration, lung disease, and alcoholism.
What are some potential causes of alkalosis? - Answers - Some potential causes of
alkalosis include vomiting, excessive use of diuretics, hyperventilation, and certain
medications.
define anion - Answers - negatively charged ion
How are acids defined? - Answers - Acids are defined as hydrogen-containing
substances that, when in solution, dissociate into H+ and an anion.
Why are some substances that contain hydrogen not classified as acids? - Answers -
Some substances that contain hydrogen are not classified as acids because their
hydrogen is tightly bound and does not separate from the molecule.
What is an example of an acid? - Answers - An example of an acid is hydrochloric acid
(HCl), which dissociates almost entirely into H+ and Cl- in solution.
What is dissociation? - Answers - the separation of a compound into its constituent ions
when in solution.
What is the chemical equation for the dissociation of carbonic acid (H2CO3) in solution?
- Answers - H2CO3 ⇌ H+ + HCO3-.
What determines whether a substance is a strong acid or a weak acid? - Answers - The
degree to which the H+ dissociates in solution determines whether a substance is a
strong acid or a weak acid
VERIFIED ACCURATE ANSWERS
What is the main difference between an acid and a base? - Answers - The main
difference between an acid and a base is the concentration of hydrogen ions (H+) and
hydroxide ions (OH-) present in each solution.
How does an acid differ from a base in terms of hydrogen ion concentration? - Answers
- Acids have a higher concentration of hydrogen ions (H+) than bases, which have a
higher concentration of hydroxide ions (OH-).
What is the pH range for acids - Answers - pH below 7
what is the pH range for bases - Answers - pH above 7
What are some common properties of acids? - Answers - Acids typically have a sour
taste, can be corrosive, and react with metals to produce hydrogen gas. They also turn
blue litmus paper red and have a pH less than 7.
What are some common properties of bases? - Answers - Bases typically have a bitter
taste, feel slippery or soapy to the touch, and can be caustic. They turn red litmus paper
blue and have a pH greater than 7.
What is the neutral pH value, and what substance has this pH? - Answers - Answer 6:
The neutral pH value is 7, and pure water has this pH. Neither acidic nor basic, pure
water has an equal concentration of hydrogen ions and hydroxide ions.
what does pH stand for - Answers - potential of hydrogen
How is pH calculated? - Answers - pH is calculated as the negative logarithm (base 10)
of the concentration of hydrogen ions (H+) in a solution. The formula for pH is pH = -
log[H+]
What is the pH of a neutral solution - Answers - 7
How does a change in pH of one unit affect the concentration of hydrogen ions? -
Answers - A change in pH of one unit represents a tenfold change in the concentration
of hydrogen ions (either an increase or a decrease depending on the direction of the pH
change). For example, a solution with a pH of 3 has ten times the concentration of
hydrogen ions as a solution with a pH of 4.
How can pH be measured? - Answers - pH can be measured using pH test strips, a pH
meter, or a colorimetric pH indicator.
, What is acidosis? - Answers - Acidosis is a medical condition that occurs when the pH
of the blood drops below normal, typically below a pH of 7.35. This can be caused by an
excess of acid in the blood or a loss of bicarbonate, which helps to regulate pH levels.
What is alkalosis? - Answers - Alkalosis is a medical condition that occurs when the pH
of the blood rises above normal, typically above a pH of 7.45. This can be caused by a
loss of acid in the blood or an excess of bicarbonate.
What are the broader impacts of acidosis on the body? - Answers - Acidosis can cause
a range of symptoms and complications, including confusion, fatigue, shortness of
breath, nausea, vomiting, and coma. It can also lead to electrolyte imbalances, which
can affect the functioning of the heart, muscles, and other organs.
What are the broader impacts of alkalosis on the body? - Answers - Alkalosis can cause
symptoms such as muscle twitching, tingling sensations, dizziness, and spasms. In
severe cases, it can cause confusion, seizures, and even death. Alkalosis can also
affect the functioning of the heart, muscles, and other organs.
What are some potential causes of acidosis? - Answers - Some potential causes of
acidosis include kidney failure, diabetes, dehydration, lung disease, and alcoholism.
What are some potential causes of alkalosis? - Answers - Some potential causes of
alkalosis include vomiting, excessive use of diuretics, hyperventilation, and certain
medications.
define anion - Answers - negatively charged ion
How are acids defined? - Answers - Acids are defined as hydrogen-containing
substances that, when in solution, dissociate into H+ and an anion.
Why are some substances that contain hydrogen not classified as acids? - Answers -
Some substances that contain hydrogen are not classified as acids because their
hydrogen is tightly bound and does not separate from the molecule.
What is an example of an acid? - Answers - An example of an acid is hydrochloric acid
(HCl), which dissociates almost entirely into H+ and Cl- in solution.
What is dissociation? - Answers - the separation of a compound into its constituent ions
when in solution.
What is the chemical equation for the dissociation of carbonic acid (H2CO3) in solution?
- Answers - H2CO3 ⇌ H+ + HCO3-.
What determines whether a substance is a strong acid or a weak acid? - Answers - The
degree to which the H+ dissociates in solution determines whether a substance is a
strong acid or a weak acid
