Respuesta :

nkirotedoreen46

Answer:

0.694 moles

Explanation:

We are given;

  • Mass of water as 12.5 g

We are required to calculate the number of moles of water;

  • We need to know the relationship between moles, mass and molar mass of a compound.
  • That is; Number of moles = Mass ÷ Molar mass

In this case;

  • Mass of water is 12.5 g
  • Molar mass of water is 18.02 g/mol

Therefore;

Moles of water = 12.5 g ÷ 18.02 g/mol

                         = 0.694 moles

Therefore, moles of water are 0.694 moles

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