Ответ:
дано
V(HCL) = 500 mL
p(HCL) = 1.1 g/mL
W(HCL) = 0.2
-------------------
m(Zn) - ?
V(H2) - ?
m(HCL) = V(HCL) * p(HCL) * W(HCL) = 500 * 1.1*0.2 = 110 g
Zn + 2HCL-->ZnCL2 + H2
M(HCL) = 36.5 g/mol
n(HCL) = m/M = 110 / 36.5 = 3 mol
n(Zn) = 2n(HCL)
n(Zn) = 3 / 2= 1.5 mol
M(Zn) = 65 g/mol
m(Zn) = n*M = 1.5* 65 = 97.5 g
2n(HCL) = n(H2)
n(H2) = 3 / 2= 1.5 mol
V(H2) = n*Vm = 1.5 * 22.4 = 33.6 L
ответ 33.6 л , 97.5 гр
Объяснение:
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Ответ:
дано
V(HCL) = 500 mL
p(HCL) = 1.1 g/mL
W(HCL) = 0.2
-------------------
m(Zn) - ?
V(H2) - ?
m(HCL) = V(HCL) * p(HCL) * W(HCL) = 500 * 1.1*0.2 = 110 g
Zn + 2HCL-->ZnCL2 + H2
M(HCL) = 36.5 g/mol
n(HCL) = m/M = 110 / 36.5 = 3 mol
n(Zn) = 2n(HCL)
n(Zn) = 3 / 2= 1.5 mol
M(Zn) = 65 g/mol
m(Zn) = n*M = 1.5* 65 = 97.5 g
2n(HCL) = n(H2)
n(H2) = 3 / 2= 1.5 mol
V(H2) = n*Vm = 1.5 * 22.4 = 33.6 L
ответ 33.6 л , 97.5 гр
Объяснение: