Предмет: Химия, автор: masha8bpo11fm

сколько молекул содержит в 1 чайной ложке сахара c12h22011масса сахара 5 г

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Автор ответа: krioira

m= 5 (г)

n=m/M
M(C12H22O11)=12*12+22*1+11*16=342 (г/моль)
n=5/342=0.02(моль)
N=Na*n, где Na- число Авагадро = 6.02*10^23 (г/моль)
N=6.02*10^23*0.02=0.12*10^23 (молекул)

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