Asolution has a ph of 4.20. using the relationship between ph and poh, what is the concentration of oh−?

 The concentration of is

Explanation:- pH or pOH is the measure of acidity or alkalinity.

pH is defined as negative logarithm of hydrogen ion concentration. pOH is defined as the negative logarithm of hydroxide ion concentration.

The relation between pH and pOH is given as:

Given : pH = 4.20

explanation:

i think option no d is the correct answer

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons