Molarity of a 50 ml H2SO4 solution is 10M. If the density of the solution is 1.4g/cc calculate molality

Book Online Demo

Check Your IQ

Try Test

Courses

Offline Centres

Molarity of a 50 ml $H_{2} S O_{4}$ solution is 10M. If the density of the solution is 1.4g/cc calculate molality

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!

An Intiative by Sri Chaitanya

0.5

7.14

23.8

10.0

answer is B.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

$m = \frac{m a s s o f s o l u t e}{G m w o f s o l u e} \times \frac{1000}{m a s s o f s o l v e n t}$

mass of $H_{2} S O_{4}$ $s o l u t e =$ $10 \times 98 = 980 g$

mass of $H_{2} S O_{4}$ solute in 50ml =

$\frac{980 \times 50}{1000} = 49 g m$

Mass solution = $d \times v = 1.4 \times 50 = 70 g$

$∴$ mass of solvent $= 70 - 49 = 21 g m$

$∴ m = \frac{49}{98} \times \frac{1000}{21} = 23.8 m$

Watch 3-min video & get full concept clarity

JEE

NEET

Foundation JEE

Foundation NEET

CBSE