pH of solution at 25°C is 2. If the pH is to be then hydronium ion concentration should be

Question

pH of solution at 25°C is 2. If the pH is to be then hydronium ion concentration should be (A) doubled (B) halved (C) decreased by 100 times (D) increased by 100 times.

Tardigrade Admin · Accepted Answer

pH = 2 ∴ [H3O+]=10-2 This means, [H+] cone, should decrease from 10-2 to 10-4, i.e., by 100 times

Q. pH of solution at 25 $^{\circ}$ C is 2. If the pH is to be then hydronium ion concentration should be

doubled

halved

decreased by 100 times

increased by 100 times.

$p H = 2$
$∴ [H_{3} O^{+}] = 1 0^{- 2}$
This means, $[H^{+}]$ cone, should decrease from $1 0^{- 2}$ to $1 0^{- 4}$ , i.e., by $100$ times

Q. pH of solution at 25∘C is 2. If the pH is to be then hydronium ion concentration should be