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By one definition, acids and bases are substances that produce H+ ion in solution.
When hydrochloric acid from the stomach comes in contact with the lining of the esophagus, it causes a burning sensation in the tissues.
Some of the acid can cause pain in the throat and a sour taste in the mouth.
Most people experience heartburn after a large meal when the stomach is full.
Lying in a horizontal position after a large meal increases the likelihood of stomach acid reflux.
To relieve mild heartburn, swallow repeatedly.
Section 5.7 is contained in saliva.
In the next chapter, we will see how bicarbonate acts as a base.
Tums, milk of magnesia, and Mylanta are antacids that can be used to treat heartburn.
The effectiveness of neutralizing stomach acid is determined by the effectiveness at neutralizing esophageal acid.
Some people have a chronic problem with heartburn.
There is a medical condition associated with chronic heartburn.
The band of muscles at the bottom of the esophagus is not close enough to keep stomach contents out.
The concentration of stomach acid is a wireless sensor.
A physician uses a tube that goes [H3O+], which varies from about 0.01 to down through the throat, to attach a sensor to the patient's esopha.
The readings from the sensor are transmitted to a recorder on the patient's body.
The patient goes about his or her normal activities while the recorder monitors his or her sputum.
The physician reads the record to make a diagnosis.
We look at acid and base behavior in this chapter.
We know that acids and bases are important to our health, but they are also found in many household products, foods, and even in nearly every chemistry laboratory.
Much of biology is based on acid-base chemistry.
The building blocks of the molecule that carries the genetic code in DNA are called bases.
The table lists some acids.
There are dyes that change color when there are acids and bases.
The formula for acetic acid can be written as CH3COOH.
In most chemistry laboratories, you can find hydrochloric acid.
In industry, it is used to clean metals, prepare and process some foods, and refine metal ores.
hydrochloric acid is the main component of stomach acid.
In the laboratory, sphuric acid and nitric acid are common.
They are involved in the manufacture of explosives, dyes, and glues.
Most automobile batteries are powered by sulfuric acid, which is produced in larger quantities than any other industrial chemical.
It is also produced in wine that is not properly stored.
Wine experts consider the presence of vinegar in wines a serious fault, since it makes the wine taste like salad dressing.
Substances derived from living organisms have carboxylic acids in them.
Malic acid is found in apples, grapes, and wine, as well as lemons and limes.
acetic acid makes it taste sour.
Fruits and grapes contain acids.
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