Question

Dalam 50 gram pupuk urea (Co(NH2)2 terdapat 21 gram nitrogen hitunglah kemurnian pupuk

Answer 1

Verified answer

Mr.(CO(NH₂)₂ = 60
% N = (28/60)x100%
       = 46,67%

21 gram N dalam 50 gram Urea
%N dalam urea = (21/50)x100%
                         = 42%
Kemurnian Pupuk = (42%/46,67%) x100%
                             = 89,99%

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