00:01
Question is what? a 2 .5 normal solution of scl has a density is this.
00:13
What is the modality and modality of the solution? so we are going to discuss how can we calculate normality and modality of the solution.
00:22
So normality is given.
00:24
We know that normal we know that normality is equal to the n factor.
00:32
So normality is that 2 .5 normal.
00:35
Morality we have to calculate and then what is the one.
01:13
Morality, how can we calculate modality? modality is what and how can we calculate modality? so 2 .5 molar.
02:12
So 2 .5 molar means what? 2 .5 mole of solute.
02:20
So it is the scl that is present in the 1000 mn solution.
02:30
Correct.
02:31
And modality formula is what? that is the mole in 2000 divided by weight of the water correct mole is given that is the 2 .5 into thousand so mass of the water is the hundred ground so molality will comes out here 225 okay for the second part we have to calculate molarity of the lead nitrate minority formula is the mass by molar mass into thousand divided by volume of the solution...