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LadyAu
@LadyAu
July 2022
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помогите!! найти массовую долю элеметов
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jananochkajanida
W= ar(x)*n/mr(в-ва)
mr= ar(na) + ar(cl)=23+35.5=58.5
w(na)=23/58.5=0.39*100%=39%
w(cl)=35.5/58.5=0.61*100%=61%
mr=ar(s) + 2*ar(o)=32+2*16=32+32=64
w(s)=32/64=0.5*100%=50%
w(2O)=32/64=0.5*100%=50%
И ДАЛЬШЕ ДЕЛАЙ ВСЕ ПО ФОРМУЛЕ
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Answers & Comments
mr= ar(na) + ar(cl)=23+35.5=58.5
w(na)=23/58.5=0.39*100%=39%
w(cl)=35.5/58.5=0.61*100%=61%
mr=ar(s) + 2*ar(o)=32+2*16=32+32=64
w(s)=32/64=0.5*100%=50%
w(2O)=32/64=0.5*100%=50%
И ДАЛЬШЕ ДЕЛАЙ ВСЕ ПО ФОРМУЛЕ