Chemistry, asked by abaydejashu1, 4 months ago

calculate the mass of Al2(so4)3 in 250ml of solution if the concentration is 0.48N

Answers

Answered by Rameshjangid

Answer: Mass = 123.12gram

Given:

Volume = 250 ml

Normality = 0.48N

Molar mass = 342

To find:

Given mass

Explanation:

n-factor of total chemical compound = 6

Normality/Molarity = 6

0.48/Molarity = 6

Molarity = 0.08

Molarity = [Mole/Volume(ml)] * 1000

0.08 = (Mole/250) * 1000

Mole = 0.02

Mole = given mass/Molar mass

0.08 = Given mass/ 342.25

Given mass = 6.843

Important points,

n-factor or value factor

n-factor or value factor is a term from redox reactions. It is used to describe the number of electrons gained or lost per atom during a reaction.

Molarity

The molarity of a given solution is defined as the total number of moles of solute per liter of solution.

Normality

Normality is Abbreviated as N and sometimes called the equivalent concentration of the solution. It is mainly used during titration reactions or especially in the context of acid-base chemistry as a measure of reactive species in solution.