A 1 liter solution contains 0.227 M acetic acid and 0.302 M potassium acetate. Addition of 0.113 moles of sodium hydroxide will: (Assume that the volume does not change upon the addition of sodium hydroxide.)

(e) No Change on pH

Explanation:

The question is not complete. The completed question is;

A 1 liter solution contains 0.227 M acetic acid and 0.302 M potassium acetate. Addition of 0.113 moles of sodium hydroxide will:

(a) Raise the pH

(b)lower the pH

(c) Raise the pH by several unit

(d) lower the pH by several unit

(e) No Change on pH

The mixture of 0.227 M acetic acid and 0.302 M potassium acetate, gives a buffer solution.

The mixture resists change in pH when the Sodiumhydroxide is added

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8