Respuesta :

Answer:

There are 2.55 moles of water.

Explanation:

First you have to calculate the molar mass fo water ⇒ 18 grs/mol.

Then 18 grs ----------- 1 mol H2O

        45.9 grs ------- 2.55 moles of H2O

There are 2.55 moles of water.

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