Question

What is the molarity of solution, which results when 3.4 ml of concentrated (4.75M) aqueous ammonia is diluted to 40ml ?


0.004M


55.88M


0.4M


4×10-4M




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Answer 1

Answer:

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Answer 2

Answer:

0.4M

Explanation:

This is known as Dilution.

Even when we dilute a substance in a solution its no. of particles will remain same i.e. the no. of moles will be the same.

• Molarity = no. of moles/volume
• Therefore, no.of moles = Molarity×Volume

in case of dilution M₁V₁=M₂V₂

where M is molarity and V is volume

M₁=4.75M         (Given)

V₁=3.4ml           (Given)

M₂=?                 (To Find)

V₂=40ml           (Given)

Put the values in the equation and see the magic.