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%S= 32u/88u * 100% = ok. 36.3%
2. mFeSO4 = 1* 56u + 1*32u +4*16u = 152u
%S= 32u/152u *100% = ok. 21%
3. mMgS= 1*24u +1 *32u= 56u
%S = 32u/56u*100%= ok. 57,14%
4. SnS2= 1*119u + 2* 32u = 183u
%S= 64u/183*100%= ok. 35%
5. mCaSO4= 1*40 u + 1*32u + 4 *16u = 136u
%S 32u/136u*100%= ok. 23,5%
6. mNa2S = 2 * 23u + 1*32u =78u
%S= 32u/78u*100%= ok. 44,4%
mam nadzieje, ze wszystko sie zgadza;)