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charadreemurr1p123dk
@charadreemurr1p123dk
July 2022
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Смешатли 20г соли и 25г воды рассчитайте массовую долю соли в растворе.
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Margarettt1
Verified answer
Mр-ра=20г.+25г.=45г.
w=mв-ва/mр-ра*100%
w(соли)=20г./45г*100%=0,444=44.4%
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Cuprumhidroxside
Verified answer
W=m(в-ва):m(раствора)
m(раствора)=m(соли)+m(вода)
m(раствора)=20+25=45 г
w=20:45=0,44 или 44%
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Thanks 2
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Answers & Comments
Verified answer
Mр-ра=20г.+25г.=45г.w=mв-ва/mр-ра*100%
w(соли)=20г./45г*100%=0,444=44.4%
Verified answer
W=m(в-ва):m(раствора)m(раствора)=m(соли)+m(вода)
m(раствора)=20+25=45 г
w=20:45=0,44 или 44%