Chemistry Flashcards
Is a solution that has an excess of H+ ions. It comes from the Latin word acidus that means ‘’ Sharp’’ Or ‘’sour’’
Acid
The more H+ ions the more acidic the solution.
Acid
Properties of an Acid
Tastes Sour
Conduct Electricity
Corrosive, which means the break down certain substance, many acids corrode, skin, and paper
Some acid reacts strongly with metals
Turns blue litmus paper to red
Used of acid
Acetic acid = Vinegar
Citric Acid = Lemons, Limes and oranges, it is in many sour candies such as lemonades and sour patch.
Ascorbic acid = Vitamin C which your body needs to function
Sulfuric Acid = Is used in the production of fertilizers, steel, paints, and plastics
Car Batteries
Is a solution that has an excess of OH- ions
Base
Another word for base is
Alkali
are substances that accept H+ ions
Bases
Properties of acid
Feels slippery
Do not react with metals
Tastes Bitter
Turns red litmus paper blue
Corrosive
Can conduct electricity (think alkali batteries)
Used of bases?
Bases give soaps, ammonia, and many other cleaning products some of their useful properties
The OH- ions interact strongly with certain substances, such as dirt and grease
Chalk and oven cleaner are ex. Of familiar product that contain bases
Your blood is a basic solution
Ph scale
pH is a measure of how acidic or basic a solution is
The pH scale ranges from 0 to 14
Acidic solutions have pH values below 7
A solution with a pH of 0 is very acidic
A solution with a pH of 7 is neutral
Pure water has a pH of 7
Basic solutions have pH values above 7
A change in 1 pH unit represents the tenfold change in acidity of the solution, For example
If one solution has a pH of 1 and a second has a 10 pH
What do you call a acid and base reactions?
Neutralization
mixture is not as acidic or basic as the individual starting solutions
An acid and base mixture
Food flavour and preservatives
Sodium Chloride NaCL
Addictive in iodized
Potassium Iodine Kl