Предмет: Химия, автор: kimma2011

Какое количество вещества и сколько молукул соответствует 196г серной кислоты?

Ответы

Автор ответа: КSаNа

0

находим количество вещества серной кислоты

n(H2SO4) = m/M = 196г/98г/моль=2моль

N=n*Na = 2моль * 6,02 * 10(23) = 12 * 10(23) молекул

Автор ответа: is48

0

n=m:M;

N=NA*n;

M(H2SO4)=2*1+32+16*4=98(г/моль)

n=196:98=2(моль)

N=6*10^23*2=12*10^23(молекул)

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