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h280662
@h280662
July 2022
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Помогите решить 1)Дано H2SO4 m=24,5г Найти моль,N-? V-? 2)дано NaOH N=2,408*10^24 Найти моль. V-? m-?
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Pofigistka0
1)n(H
SO4)=24,5г/98г/моль=0,25моль; V(H2SO4)=22,4дм³/моль* 0,25 моль=5,6дм³; N(H2SO4)=6,02×10²³×0,25моль=1,505×10²³
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Pofigistka0
2)n=N/Na;m=n*M;V=Vm*n; M(NaOH)= 40г/моль
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