Question

What is the concentration of hydronium ions (in M) in a solution at 25°C with pH = 4?​

Answer 1

Explanation:

Correct option is

A

Rs 13

Costof20dozenbananas=208

fordozenofthebananawereratio

letnewratioofbananatobex

now,

Byquestion

costof16dozenbanans=costof20banana

16×x=208

x=

16

208

x=13