SATHEE: Equilibrium Question 477

Equilibrium Question 477

Question: A base is dissolved in water yields a solution with a hydroxide ion concentration of 0.05 $m o l l i t r e^{- 1} .$ The solution is [AFMC 1997]

Options:

A) Basic

B) Acid

C) Neutral

D) Both A and B

Show Answer

Answer:

Correct Answer: A

Solution:

$[O H^{-}]$ ion conc. $= 0.05 \frac{m o l}{l}$

$= 5 \times 10^{- 2} \frac{m o l}{l}$

$p O H = - \log [O H^{-}]$

$= - \log [5 \times 10^{- 2}]$

$p O H = 1.30$ ; $p H + p O H = 14$

$p H = 14 - p O H$

$= 14 - 1.30 = 12.7$

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Equilibrium Question 477

Question: A base is dissolved in water yields a solution with a hydroxide ion concentration of 0.05 mollitre−1. The solution is [AFMC 1997]

Options:

Answer:

Solution:

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Question: A base is dissolved in water yields a solution with a hydroxide ion concentration of 0.05 $m o l l i t r e^{- 1} .$ The solution is [AFMC 1997]