Question

molarity and molality !

Answer 1

See there your question is given like:

2g of a Substance is added to water...


Can you tell me what is solute here and what is the solvent here ??

Answer 2

solvent is water and solute is that 2g substance .. correct ?

Answer 3

Yes..

Answer 4

For finding molarity you need number of moles solute..

How will you find number of moles of solute because it is given in 2 grams.. ??

Answer 5

i dont know !

Answer 6

For that there is a formula you will use that..

Answer 7

ah .. that previous one ?

Answer 8

derived from molarity .. ?

Answer 9

\[Number \; Of \; Moles = \frac{Grams \; Present}{Molecular \; Mass \; Of \; that \; Substance}\]

Answer 10

No no that one..

This one I have written above now..

Answer 11

how many formulas are there in this chapter ?

Answer 12

Now let us try to implement this formula on a question so that you can understand it properly.


There are as many formulas as there are hairs on your head..

Ha ha ha..

Answer 13

what if am bald ?? :P

Answer 14

Wait for one second my mummy is calling me..

Have a look on that formula and try to memorize it and understand it as well..

Answer 15

okay !

Answer 16

Then there are as many formulas as there are hairs on my head

And I don't like to be bald..

Answer 17

am not bald either .. i were just kidding :)