Using the Henderson-Hasselbalch Equation, Determine the Accuracy of the Gas

question 27

Multiple Choice

Using the Henderson-Hasselbalch equation, determine the accuracy of the gas below. To be considered accurate, it must be within 0.03 pH unit. pH = 7.22, PCO₂ = 49 mm Hg, HCO₃^- = 20 mEq/L

• A) This gas is completely accurate.
• B) This gas is accurate as the calculated pH is 7.23.
• C) This gas is accurate as the calculated pH is 7.20.
• D) This gas is inaccurate according to the H-H equation.

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A highly corrosive strong mineral acid with molecular formula H2SO4, widely used in industry.

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