дано
m(Cu(OH)2) = 300 g
m(CH3COH) = 36 g
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Достаточно ли 300 г гидроксида ،меди (II) - ?
CH3COH+2Cu(OH)2-->CH3COOH+Cu2o+2H2O
m(CH3COH) = 44 g/mol
n(CH3COH) = m/m = 36 / 44 = 0. 82 mol
2n(Cu(OH)2) = n(CH3COH)
n(Cu(OH)2) = 2*0. 82 = 1. 64 mol
M(Cu(OH)2) = 98 g/mol
m(Cu(OH)2) = n*M = 1. 64 * 98 = 160. 72гр
Да, достаточно