Strong And Weak Acids

Question 1

What do all acids produce in aqueous solution ? Bonus what even is an aqueous solution. ?

Answer 1

They always produce H+ ions
Dissolved in water

Example
HCL —-> H+ + Cl-

Question 2

What is it called when the acid splits to make the H+ ions ?

Answer 2

Ionized

So In an aqueous solution, acid molecules ionize and release H+

Question 3

What is an example of a strong acid ?

Answer 3

HCL- hydrochloric acid
H2SO4- sulfuric acid
HNO3- nitric acid

Question 4

What do strong acids do in aqueous solutions ?

Answer 4

Strong acids fully ionize in aqueous solutions ( this is the definition of a strong acid)

Question 5

What are weak acids ?

Answer 5

Acids that partially ionize in aqueous solutions

Question 6

By looking at a reaction how can we tell an acid is weak ?

Answer 6

The arrow will point both ways <—->

Question 7

What are three weak acids ?

Answer 7

Carbonic acid
Ethanoic acid
Citric acid

Question 8

What do the PH scale indicate ?

Answer 8

The concentration of hydrogen ions produced by an acid

Question 9

What pH will strong acids have ?

Answer 9

A lower pH than weak acids for a given concentration
Meaning numbers like 1 and 2 are very strong acids
Why: they fully ionize producing a greater concentration of hydrogen ions

Question 10

As the pH scale decreases by one unit what happens to the concentration of hydrogen ions ?

Answer 10

They increase by ten times

Question 11

What do scientists call the ten times difference between pH?

Answer 11

One order of magnitude

So pH 1 - 3
pH1 has 100x higher concentration of H+ ions than pH3

Question 12

What does the concentration of an acid tell us ?

Answer 12

The amount of acid molecules in a given volume of solution

Question 13

Explain concentration with simple terms ?

Answer 13

A dilute acid molecules in a given volume than a concentrated acid even if the strength of the acid is the same