Question

Calculate
the PH of 1x10 - 4 molar
solution of
NaOH​

Answer 1

$\color{darkblue}\underline{\underline{\sf Given-}}$

• Concentration of NaOH = ${\sf 1×10^{-4}M}$

$\color{darkblue}\underline{\underline{\sf To \: Find-}}$

• pH of NaOH .

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

We know that -

$\color{violet}\bullet\underline{\boxed{\sf pOH=-log[OH^-]}}$

$\implies{\sf pOH = -log[10^{-4}] }$

$\color{orange}\implies{\sf pOH = 4}$

Then ,

$\Large\color{violet}\underline{\boxed{\sf pH+pOH=14}}$

$\implies{\sf pH+4=14}$

$\implies{\sf pH=14-4}$

$\implies{\sf pH=10}$

$\color{darkblue}\underline{\underline{\sf Answer-}}$

Thus , pH of NaOH is $\color{red}{\sf 10}$

Answer 2

Answer:

Hope this help you....