   Chapter 7, Problem 8RQ

Chapter
Section
Textbook Problem

Which of the following HCO 3 -  to  H 2 CO 3 ratios represent(s) an acidic pH?1. 18:12. 28:13. 12:14. 22:1A. 1 onlyB. 2 onlyC. 3 onlyD. 1 and 3 only

Summary Introduction

Introduction:

The normal conditions for a neutral pH is that the ratio of bicarbonate ions (HCO3) to carbonic acid (H2CO3) should be 20:1. This means that for every carbonic acid molecule (H2CO3) produced in the plasma, 20 bicarbonate ions (HCO3) must be formed.

Explanation

Explanation for the correct answer:

Option (D) states that the ratios 18:1 (1) and 12:1 (3) indicate an acidic pH. The normal conditions for neutral pH is that the ratio of bicarbonate ion (HCO3) to carbonic acid (H2CO3) should be 20:1. This means that for every H2CO3 molecule produced in the plasma, 20 HCO3 must be formed. A reduction in the ratio will make it acidic. Therefore, 18:1 and 12:1 are correct. Hence, option (D) is correct

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