Question

Question No. 11
The volume of water to be added to 100 cm of 0.25 M H2SO4 to get decimolar concentration is :
Options
O 150 cm
450 cm3
500 cm
400 cm3​

Answer 1

Answer:

the volume of water to be added=150cc

Explanation:

molarity M = w/m×1000/v

0.25= w/98×1000/100

w=2.45gm

for decimolar molarity M= 0.1

volume v =250 cc

already 100cc water in 0.25M

so 150cc water to be added.