Question

10 mL of 10 ^ - 5 * N Mhydroxide solution is diluted to one litre. Assuming complete ionisation, the pH of the resulting solution is
please help ASAP!!!​

Answer 1

NaOH completely ionizes as : NaOH→Na++OH−

∴[OH−]=[NaOH]=N1000=10−3N=10−3M (∵ Eq. mass = Mol. Mass in case of NaOH)

Now, as [H3O+][OH−]=10−14∴[H3O+]=10−14[OH−]=10−1410−3=10−11

∴pH=−log[H3O+]=−log10−11=11

Answer 2

Answer:

10 mL of 10 ^ - 5 * N Mhydroxide solution is diluted to one litre. Assuming complete ionisation, the pH of the resulting solution is

please help ASAP!!!