Question

• Calculate molarity of NaOH in the
solution prepared by dissolving 2 gram
in water to
form 1.25ml
solution.​

Answer 1

Answer:

molarity=mole/volume

Explanation:

mole=mass in gram/molar mass=40/2=20,                   then molarity=20/1.25=(?) you will get answer      plz give me brainnlist

Answer 2

Answer:

40M

Explanation:

Molarity = No. of moles of solute/ volume per litre solution.

No. Of moles of NaOH = given mass/ molar mass

=> 2/40 = 0.05 moles.

Volume is given in ml. So we have to convert it to L.

=> 1.25 ml = 0.00125L

Now Molarity = 0.05/0.00125 => 40 Molar (M)