Question

Calculate the percentage composition of
a] KNO3
b] Ca3 (PO4)2

[At. wts. are K = 39, N = 14, O = 16, Ca = 40, P = 31].​

Answer 1

Answer:

hope it will help you

Answer is in the above pic

Answer 2

Answer:

a)kno3

k=39 ,N=14 o=16

Potassium K= 38.672%

Nitrogen N =13.854%

Oxygen O=47.474%

b)Ca3 (Po4)2

Ca=40 , P=31 ,O=16

Calcium Ca =38.763%

Phosphorus P=19.972%

Oxygen O =41.265%