KBr i guess, because the + and - charge is 1 so its like that
Physical Change because a new substance was not created and if it was a chemical change, a new substance would have to be created.
The concentration of hydrogen can be shown as:
[H+ ] = 3 * 10-5 M
pH can be determined as:
pH = - log [H+ ]
= - log (3 * 10-5)
= 4.53
Thus the pH of solution is 4.53