2.5 Litre of 1 M NaOH solution mixed with another 3 litre of 0.5 M NaOH solution.

25 Litre Of 1 M Naoh Solution Mixed With Another Chemistry Question

2.5 Litre of 1 M NaOH solution mixed with another 3 litre of 0.5 M NaOH solution. Then find out molarity of resultant solution

Options

(a) 0.80 M
(b) 1.0 M
(c) 0.73 M
(d) 0.50 M

Correct Answer:

0.73 M

Explanation:

Molecular weight of NaOH = 40.
2.5 litre of 1 M NaOH solution contain 40⨯ 2.5 g of NaOH .
3 litre of 0.5 M NaOH solution contain 40 ⨯ 0.5⨯ 3 g of NaOH.
If this two solutions are mixed, the volume of the resultant solution = (2.5 + 3) lit = 5.5 litre.
5.5 litre of the resultant solution contain 40(2.5 + 1.5) g of NaOH.
1 litre of the resultant solution contain
40⨯4/5.5 g of NaOH = 40⨯4/5.5⨯40 mole of NaOH.
The molarity of the resultant solution = 0.727 ≈ 0.73 mol/L.

Related Questions:

  1. NaOCl is used as a bleaching agent and sterilising agent. It can be synthesized
  2. Which one of the following is a false statement
  3. A 5 molar solution of H₂SO₄ is diluted from 1 liter to a volume of 10 litres
  4. The basicity of aniline is weaker in comparison to that of mathyl amine due to
  5. 2.76 g of silver carbonate on being strongly heated yield a residue weighing

Topics: Solid State and Solutions (91)
Subject: Chemistry (2512)

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*