4. In a hydrated compound of a metal, proportion of water is 47.12 percentage by mass. On heating, it is partly dehydrated and proportion of water becomes 30.82 percentage by mass and metal becomes 15.75 percentage by mass. What will be the percentage proportion of metal by mass in original compound ? (1) 12 (2) 18 (3) 10 (4) 16

Open in App

Solution

Suggest Corrections

Similar questions

Q. An organic compound has C and H percentage in the ratio

6 : 1

by mass and C and O percentage in the ratio

3 : 4

by mass. The compound is:

Q. Chalk contains calcium, carbon, oxygen in proportion 10:3:12 .Find the percentage of each in a chalk if the mass of chalk stick is 5gms.

Q. The following data was obtained on performing an experiment for determining the percentage of water absorbed by raisins:

Mass of water in the beaker	=	50 g
Mass of dry raisins	=	20 g
Mass of raisins after soaking in water	=	30 g
Mass of water left in the beaker after the experiment	=	40 g

The percentage of water absorbed by raisins will be:

(1) 10%
(2) 25%
(3) 45%
(4) 50%

Q. In a mixture of milk and water, the proportion of water by weight is 75%. If, in the 60 gram mixture, 15 gram water was added, what would be the percentage of water in the new mixture?

In a mixture of milk and water the proportion of water by weight was 75%. If in 60 gm of mixture 15 gm water was added, what would be the percentage of water ? (Weight in gm)

Join BYJU'S Learning Program