Question

If the masses of Cr and O are in the ratio 13:12 in CrO3, then the ratio of O that combines with the same mass of Cr in Cr2O3 and Cr2O7 is

Answer 1

Answer:3:7

Explanation:

Mass of O is 16u and Mass Of Cr is 52 and Cr and O3 are in ratio 13:12...

Thus Cr Has 13g and O has 12/3 i.e, 4.

Cr2O3 has 26/12 , and Cr2O7 has 13*2/4*7.

Then Mass of O With ratio Cr is 6/13 ratio to 13 /14 (6/13 , 12/16 ko divide Krne pe aaya.) And (13/14 ko 26/28 see divide Krne pe aaya)...

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