Предмет: Химия, автор: IraNosenko

2. Який обем етанолу можна добути під час взаємодії води зі 60г етилену, в якому масова частка домішок 30%?
масова частка домішок в якому 5%? (реакція: СаС2 + 2Н2О = С2Н2 + Ca(OH)2
3. Обчисліть обем водню виділиться під час термічного розкладу 200 грам метану, в якому масова частка домішок 10%?​

Ответы

Автор ответа: renatkkkorsau4
1
C6H12O6------>2C2H5OH +2CO2 C2H5OH----(O)--> CH3CHO-----> CH3COOH m(Домішки) = m xw= 200x 0.1=20г Тоді глюкози було 200-20=180г n(C6H12O6)=180/180= 1 моль 2n(C6H12O6)= n(C2H5OH) n(C2H5OH)= 2моль n(C2H5OH)= n(CH3COOH) m(CH3COOH)= n x M= 2 x60= 120 г. 2 C2H5OH----> CH2=CH2 +H2O n(C2H5OH)= m/M= 9.2/46=0.2 моль n(C2H5OH)= n(C2H4) V (C2H4)= nx Vm= 0.2 x 22.4= 4.48 л отримали етен а потім гідрування до етану, об*єми не змінюються.
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2. Last month, her sister rang her. T/F
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