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JFX1
@JFX1
July 2022
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Вычислить массовую долю C5H80
И Na2Si03 СРОЧНО!!!!!
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krioira
Mr(C5H8O) = 5*12+8*1+16=84
W(C)=60/84=0.71=71%
W(H)=8/84=0.10=10%
W(O)=16/84=0.19=19%
Mr(Na2SiO3)=2*23+28+3*16 = 122
W(Na)=46/122=0.38=38%
W(Si)=28/122=0.23=23%
W(O)=48/122=0.39=39%
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Answers & Comments
W(C)=60/84=0.71=71%
W(H)=8/84=0.10=10%
W(O)=16/84=0.19=19%
Mr(Na2SiO3)=2*23+28+3*16 = 122
W(Na)=46/122=0.38=38%
W(Si)=28/122=0.23=23%
W(O)=48/122=0.39=39%