Download Name: Date: Period ___ Homework: Acids and Bases Directions

Name: ____________________________
Date: ____________________ Period ___
Homework: Acids and Bases
Directions: Read the short passages below and answer the questions pertaining to each passage.
The acidity of blood is reduced by the action of the kidneys and the lungs. The kidneys filter
out and excrete excess H+ ions from the blood, while lungs exhale more CO 2 when blood acid
levels are high.
1.
How might the blood pH be affected by a disease that reduces lung function?
During exercise, many chemical changes occur in the body, including a drop in blood pH, which
can be very serious.
2. How is the body able to cope with such changes?
The acid hydrogen fluoride (HF) can be dissolved in pure water.
3. Will the pH of the solution be greater or less than 7? Why?
As part of the digestive process, the human stomach produces hydrochloric acid (HCl).
Sometimes excess acid causes discomfort. In such a case, a person might take an antacid
such as magnesium hydroxide, Mg(OH)2.
4. Explain how this substance can reduce the amount of acid in the stomach.