Question

if 1 mole = 10000 millimoles (abbr : Mmol). If 53g Na2CO3 put into a volumetric flask of 250ml, the molarity of this solution is?

Answer 1

Hello @dinisha !

Answer 2

Molarity = moles of solute/volume of solution

Answer 3

So first we will have to calculate the no of moles in 53g Na2CO3

Answer 4

Can u do tha ?

Answer 5

ya i gt o.5 mol

Answer 6

Now divide it with the volume given

Answer 7

dont forget to convert it into L first

Answer 8

250ml = 0.25L
molarity = 0.5/0.25 = 2.00M

Answer 9

Bingo !!

Answer 10

and can i know the formula for normality??

Answer 11

The normality of a solution is the gram equivalent weight of a solute per liter of solution.

Answer 12

u know gram equivalent ?

Answer 13

no sorry

Answer 14

okay lets work out an example

Answer 15

u clear with this one ??

Answer 16

i have a question here can i write out?

Answer 17

related to this one ??

Answer 18

normality

Answer 19

yes post it as a new one

Answer 20

yes thank you

Answer 21

\(\Huge\text{Anytime !}\)
\(\huge\ddot\smile\)