Question

13. Is number of moles of solute dissolved per litre of the solution O a. Normality O b. Formality O c. Molality O d. Molarity​

Answer 1

Answer:

Correct option is

B

Molality

Molality is concentration measured by the number of moles of solute per kilogram of solvent.

m=

w

s

solven

n

solute

Answer 2

Molarity is the number of moles of solute dissolved per litre of the solution.

• Normality is the number of mole equivalents of solute in one litre of solution.
• Formality is the number of formula masses of solute in one litre of solution.
• Molality is the number of moles of solute corresponding to one kilogram of solvent.
• Molarity is the number of moles of solute per litre of solution.
• So, from the above mentioned definitions, we can come to a conclusion that the definition of molarity matches with the given criteria. That's why, molarity will be the correct answer of this question.