Question

what is the number of hydrogen ions in 10ml of a solution with ph=13 ?

Answer 1

For expressing hydrogen ion concentration we are taking th help of ph which is exxpressed as
ph=-log[H+]
let the number of H+ ion be x.since ph is the no of H+ion in 1 lt of the solution therefore it is given by the formula
10=-log[x/10^-3]
x=10^-13
no of H+ ions=10^-13*6.023*10^23
=6.023*10^10

Answer 2

Answer:

Explanation:

[H+] = 10^pH

[H+] = 10^-13 mole/Litre

number of moles, n[H+] = [H+] x V

n[H+] = 10^-13 x V

n[H+] = 10^-13 x 10^-2

n[H+] = 10^-15 mole of H+ ions

No of ions in one mole= 6.022X10^23 mol-1

No of ions in 10^-15 mole = 6.022 X 10^23 X 10^-15

= 6.022 X 10^8