[PEPCMax]

Hi guys this is my first post so Hi everyone!

Im a biology student but have to do a chemistry module which is annoying cause i suck at it..

The question is: The self-dissociation constant for water, Kw,  has a value of 1 x10^-14.
         Write down a balanced equation for this reaction and calculate the pH
         of a solution containing 0.01 M NaOH

Im pretty sure the equation is H₂0  HO^- + H⁺ right?
Is this ok or should i write the hydronium equation but they're the same thing arent they?

Its the calculation i really dont get..

The equation is pH = pKa + log([Base]/[Acid])

The pKa is 14, but im unsure of what i put where on the rest of the equation.

Any help would be great please.

Thanks!

[Fluoroantimonicacid]

The Henderson-Hasselbach equation is for weak acids/bases. Just calculate the [H⁺] and take its -log.