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Мировая11
@Мировая11
February 2022
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Химия 9 класс задача решите плизззз
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kattycats
Zn + 2HCl = ZnCl2 + H2
m(HCl p-p) = Vxp = 60x1,1 = 66 г
m(HCl) = m(HCl p-p)xW(HCl) = 66x0,2 = 13,2 г
n(HCl) = m/M = 13,2/36,5 = 0,36 моль
из уравнения реакции следует: n(ZnCl2) = n(HCl)/2 = 0,36/2 = 0,18 моль
m(ZnCl2) = nxM = 0,18x136 = 24,48 г
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Answers & Comments
m(HCl p-p) = Vxp = 60x1,1 = 66 г
m(HCl) = m(HCl p-p)xW(HCl) = 66x0,2 = 13,2 г
n(HCl) = m/M = 13,2/36,5 = 0,36 моль
из уравнения реакции следует: n(ZnCl2) = n(HCl)/2 = 0,36/2 = 0,18 моль
m(ZnCl2) = nxM = 0,18x136 = 24,48 г