Chemical and Ionic Equilibrium 2 Question 34
«««< HEAD
34. At $90^{\circ} \mathrm{C}$, pure water has $\left[\mathrm{H}{3} \mathrm{O}^{+}\right]$as $10^{-6} \mathrm{molL}^{-1}$. What is the value of $K{w}$ at $90^{\circ} \mathrm{C}$ ?
======= ####34. At $90^{\circ} \mathrm{C}$, pure water has $\left[\mathrm{H}{3} \mathrm{O}^{+}\right]$as $10^{-6} \mathrm{molL}^{-1}$. What is the value of $K{w}$ at $90^{\circ} \mathrm{C}$ ?
3e0f7ab6f6a50373c3f2dbda6ca2533482a77bed (a) $10^{-6}$
(b) $10^{-12}$
(c) $10^{-14}$
(d) $10^{-8}$
(1981, 1M)
Show Answer
Solution:
- $K_{w}=\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]\left[\mathrm{OH}^{-}\right]=10^{-6} \times 10^{-6}=10^{-12}$
