Chapter 23
A(n) _____ is a substance that produces H+ ions in a water solution
Acid
IT has the chemical formula HNO3
Acid
It can be corrosive
Acid
It has a sour taste
Acid
It's forms hydronium ions in water
Acid
A bitter taste and a slippery feels are clues that a solution is probably a(n)
Base
A(n) _____ is a substance that produces OH- ions in a solution
Base
In a solution, it feels slippery
Base
It has a bitter taste
Base
It has the chemical formula Ca(OH)2
Base
Blood contains compounds called ____ that allow small amounts of acids or bases to be absorbed without harmful effects
Buffers
pH measures the ____ of hydronium ions in a solution
Concentration
It reacts with an indicator to produce a change in its color
Could be either acid or a base
The main advantage of detergents over soaps is that
Detergents can be used in hard water
In a titration, the _____ is the point at which the indicator changes color and stays that way
Endpoint
A(n) ____ comes from an alcohol that is not a base but has a hydroxyl group
Ester
True or False Solutions that have an equal concentration of H+ ions and OH- ions are considered acidic
False- Neutral
True or False In titration, of the solutions of unknown concentration is an acid, the standard solution used is also an acid
False- not also an acid
Change color in the presence of an acid and base
Indicators
Figure 23-1 shows
Ionization of an acid
Polyester are fibers made of
Many esters
In a ___ reaction, an acid and a base produce a salt and a water
Neutralization
Ammonia is a weak base because it produces
Only a few
A ____ is a compound formed in solution from the negative ion of an acid and the the positive ions of a base
Salt
Coffee has a pH of about 5. Coffee is __.
Somewhat acidic
In a titration, the ___ is the solution for which the concentration of another solution is known
Standard solution
A solution refers to the ease with which an acid or base forms ions in solution
Strength
True or False It is possible to have a weak acid or base
True
True or false It is possible to have a concentrated solution of a weak acid or base
True
A base that on.y partly ionizes in a solution is a ____ base
Weak
In a chemical equation a single arrow that points at the ions that are formed indicates a _____ acid or base
Weak
To neutralize gastric juices in your stomach, antacids contain ____.
bases
The formula HCl stands for ____.
hydrochloric acid
H3O+ units are also known as ____.
hydronium ions
_____ measures how acidic or basic a substance is
pH
A process that uses a solution of known concentration to find the concentration of another solution is called
titration
