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X = 4,93x10^25 moleculas
Explicación paso a paso:
La masa molecular del oxido del calcio CaO es 56 gramos/mol
Formulamos una regla tres
Si 56gramos tiene::::::: 6,02x10^23moleculas
4592gramos tendra:::::::::X
Operas 4592 x 6,02x10^23/56