Ответ:
Объяснение:
Mr(C2H5(OH)3) = 12*2 + 1*5 + 16*3 + 1*3 =80
W(C) = Ar(C) *n / Mr(C2H5(OH)3) *100% = 12*2 / 80 *100% =30%
W(H) = Ar(H) *n / Mr(C2H5(OH)3) *100% = 1*8 / 80 *100% =10%
W(O) = Ar(O) *n / Mr(C2H5(OH)3) *100% = 16*3 / 80 *100% =60%
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Ответ:
Объяснение:
Mr(C2H5(OH)3) = 12*2 + 1*5 + 16*3 + 1*3 =80
W(C) = Ar(C) *n / Mr(C2H5(OH)3) *100% = 12*2 / 80 *100% =30%
W(H) = Ar(H) *n / Mr(C2H5(OH)3) *100% = 1*8 / 80 *100% =10%
W(O) = Ar(O) *n / Mr(C2H5(OH)3) *100% = 16*3 / 80 *100% =60%