Ответ:
решения:
Mr(CH4)=12+4=16
w(C)=12*1/16=0.75
w(H)=4*1/16=0.25
Mr(CH3-CH3)= 12*2+1*6=24+6=30
w(C)=12*2/30=24/30=0.8
w(H)=1*6/30=6/30=0.2
Mr{Al(CH3)3}=27+(12+1*3)*3=27+45=72
w(Al)=27/72=0.375
w(C)=12*3/72=36/72=0.5
w(H)=1*3*3/72=9/72=0.125
Mr(K2CO3)=39*2+12*1+16*3=78+12+48=138
W(K)=39*2/138=78/138=0.57
W(C)=12/138=0.09
W(O)=16*3/138=48/138=0.34
Объяснение:
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Answers & Comments
Ответ:
решения:
Mr(CH4)=12+4=16
w(C)=12*1/16=0.75
w(H)=4*1/16=0.25
Mr(CH3-CH3)= 12*2+1*6=24+6=30
w(C)=12*2/30=24/30=0.8
w(H)=1*6/30=6/30=0.2
Mr{Al(CH3)3}=27+(12+1*3)*3=27+45=72
w(Al)=27/72=0.375
w(C)=12*3/72=36/72=0.5
w(H)=1*3*3/72=9/72=0.125
Mr(K2CO3)=39*2+12*1+16*3=78+12+48=138
W(K)=39*2/138=78/138=0.57
W(C)=12/138=0.09
W(O)=16*3/138=48/138=0.34
Объяснение: