Acids, Bases, pH And Buffers Flashcards
1
Q
What does an acid do in aqueous solution?
A
They donate hydrogen ions and protons
2
Q
What’s the difference between a strong and weak acid?
A
The stronger the acid the more ionised H+ ions are released which in turn makes the pH number lower
A weak acid has less ionised H+ ions in the solution therefore a higher pH number
3
Q
What does a base do?
A
They accept H+ ions and produce OH- in aqueous solutions
4
Q
What’s neutralisation?
A
When a weak acid and weak base react to produce a salt and water
5
Q
What’s the normal pH level of blood
A
7.35-7.45
6
Q
What is the function of a buffer?
A
To try maintain a constant pH level in different body fluids
7
Q
What is the function of the bicarbonate/carbonic acid buffer in the blood?
A
To stop the alkalosis and acidosis in the blood
