acides and basis
50 points,s
only smart people can answer

[tex]\\ \rm\Rrightarrow pH=-log[H^+][/tex]
[tex]\\ \rm\Rrightarrow pH=-log[2.5\times 10^{-6}][/tex]
[tex]\\ \rm\Rrightarrow pH=-log2.5-log10^{-6}[/tex]
[tex]\\ \rm\Rrightarrow pH=-0.398+6[/tex]
[tex]\\ \rm\Rrightarrow pH=5.602[/tex]