Blood with a pH of 1.3 indicates what about the blood sample?
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A
It is strongly acidic.
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B
It is strongly basic.
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C
. It is weakly acidic.
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D
It is weakly basic.
The blood sample is strongly acidic.
A pH value indicates the concentration of hydrogen ions in a solution on a scale from 0 to 14. A pH of 7 is neutral, values below 7 are acidic, and values above 7 are basic. As pH decreases, acidity increases sharply. A pH of 1.3 is extremely low and reflects an exceptionally high concentration of hydrogen ions. For comparison, normal human blood is maintained within a very narrow range of about pH 7.35–7.45. A pH of 1.3 is closer to stomach acid than to blood and would indicate a severely abnormal and life-threatening condition.
A. It is strongly acidic
This option is correct. A pH of 1.3 lies at the extreme acidic end of the pH scale and indicates a very strong acid with a high hydrogen ion concentration.
B. It is strongly basic
Strong bases have pH values far above 7, usually greater than 12. A pH of 1.3 is the opposite of basic.
C. It is weakly acidic
Weak acids have pH values only slightly below neutral, generally between about 4 and 6. A pH of 1.3 is far too low to be considered weak.
D. It is weakly basic
Weak bases have pH values just above 7. A pH of 1.3 is well below neutral and cannot be basic.
Conclusion
A pH of 1.3 represents an extreme level of acidity. This indicates that the blood sample is strongly acidic and far outside the normal physiological range for human blood.

Topic Flashcards
Click to FlipThe numerical range on the pH scale that indicates a strongly acidic solution.
Typically between 0 and 3.
The specific term for the ion whose concentration increases as the pH value decreases.
Hydrogen ions (H⁺).
The precise, healthy range for human blood pH.
Approximately 7.35 to 7.45.
The term for a substance that releases hydroxide ions (OH⁻) and has a pH above 7.
A base (or alkaline substance).
The medical emergency indicated by a blood pH falling far outside the normal range.
Acidosis (if too low) or Alkalosis (if too high).