Question

Cuantos equivalentes tiene el hidroxido de calcio !

Answer 1

PM Cu(OH)2

Ca: 1 x 40 = 40 g/mol
  O: 2 x 16 = 32 g/mol
  H: 2 x 1 = 2 g/mol
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       Mm = 74  g/mol

calculae el peso equivalente

Peq = Mm / Nº (OH)⁻

Peq. =  74 g/mol
             ````````````````
                     2

Peq. = 37 g/eq.