Mr(KCl)=39+35,5=74,5
ω(K)=39*100%//74,5=52,35%
ω(Cl)=35,5*100%/74,5=47,65%
Mr(Na2S)= 2*23+32=46+32=78
ω(Na)=46*100%/78=58,97%
ω(S)=32*100%/78=47,03%
Mr(KCl)=39+35,5=74,5
ω(K)=39*100%//74,5=52,35%
ω(Cl)=35,5*100%/74,5=47,65%
Mr(Na2S)= 2*23+32=46+32=78
ω(Na)=46*100%/78=58,97%
ω(S)=32*100%/78=47,03%