Question

The percentage by mass of cation in ammonium chromate will be (At. mass of Cr=52, N=14, O=16) ?

A] 13.4%,
B] 30.4%,
C] 25.7%
D] 23.7%

Answer 1

Answer:Ammonium chromate is (NH4)2CrO4

molar mass is = (14+4)2+52+64=152

Here cation is NH4+

percentage by mass of cation= molecular weight of     cation/molecular weight of ammonium chromate

% by mass of cation = 36*100/152

                                  = 23.7%

Therefore option (D) is correct.

Hope it helped

plz vote this ans as BRAINLIEST ANS.

Thank you!!  

Explanation: