Question

how to calculate molarity when mass/volume % and density are given??????

plz help me friends as soon as possible......!!!!!

plz help ...!...

:(.. ;(...

Answer 1

MOLARITY = NO. OF MOLES OF SOLUTE /

VOLUME OF SOLUTION ( L)

❇ If mass is given, then we can find moles of solute.
NO. of Moles = Given mass / Atomic mass

❇ If volume % is given, then we can find mass and density. By calculating volume from volume %.

Density = Mass / Volume

❇ If Density is given, then we can correspondly find volume or mass.

Answer 2

Answer:

Explanation:

Content:

Molarity=Number of moles/Volume of solution in litres

For example,take 15%(m/v) solution

This means 15g of the solute is present in 100 ml of solution.

Hence,moles=15/Molar mass

Volume=Mass/Density.

Substitute and get the answer.