Ответ:
дано
m(KOH) = 12 g
V(CO2)= 1.8 L
---------------------
m(K2CO3) - ?
2KOH+CO2-->K2CO3+H2O
M(KOH) =56 g/mol
n(KOH) = m/M = 12 / 56 = 0.21 mol
n(CO2) = V(CO2) / Vm = 1.8 / 22.4 = 0.08 mol
n(KOH) > n(CO2)
n(CO2) = n(K2CO3) = 0.08 mol
M(K2CO3) = 138 g/mol
m(K2CO3) = n*M = 0.08 * 138 = 11.04 g
ответ 11.04 гр
Объяснение:
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Ответ:
дано
m(KOH) = 12 g
V(CO2)= 1.8 L
---------------------
m(K2CO3) - ?
2KOH+CO2-->K2CO3+H2O
M(KOH) =56 g/mol
n(KOH) = m/M = 12 / 56 = 0.21 mol
n(CO2) = V(CO2) / Vm = 1.8 / 22.4 = 0.08 mol
n(KOH) > n(CO2)
n(CO2) = n(K2CO3) = 0.08 mol
M(K2CO3) = 138 g/mol
m(K2CO3) = n*M = 0.08 * 138 = 11.04 g
ответ 11.04 гр
Объяснение: