Acids
What is an acid ?
Anything that starts with a hydrogen like HCl
What is a base?
Contains an OH ion or hydroxide ion .
It produces hydroxide ions in aqueous solution
Strong acids and strong bases are both
Corrosive
The pH scale ranges from ___ to ____
0 to 14
Acidic solution will blue litmus
RED
Bases turn red litmus
BLUE
What is found in an antacid tablet ?
a Base
Coffee has a pH of 5. Is it acidic, basic or neutral?
ACIDIC
Acid reacts with metals to form
salt and hydrogen gas
HCl + Na yields NaCl and H2 gas
If a substance doesn’t ionize completely, but produces OH- anions, you would have to characterize it as a
a WEAK BASE
What acid is found in car batteries?
Sulfuric acid
If the HCl concentration is 1.0 x 10-⁴M .What is its pH?
4
What is the pH range for an acid ?
Less than 7
The pOH of a sodium hydroxide solution with a [OH-] of 1.0 x 10-⁴
4
Name our stomach acid.
Hydrochloric acid
Citric acid is found in many fruits, yet fruits are safe to eat. Which is most likely to be the pH of citric acid and explain your rationale:1, 5, 7, 10
5 as it is not very acidic and close to neutral pH 7 , making fruits safe and edible
Name an acid that ends in H , instead of starting in H
CH3 COOH
HCOOH
or any organic acids
If a swimming pool has a original pH of 6.8 and if the desired pH is 7.5, this what do we need to add to the pool?
a BASE
What is the salt produces when magnesium hydroxide reacts with phosphoric acid
Magnesium phosphate
If a base has a pH of 13 , is it stronger or a weaker base?
stronger base
as we move away from 7 towards 14 , the strength of the base increases