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How many formula units are in a sample of salt, NaCl, with a mass of 87.75 grams?

Respuesta :

Answer:

Number of Nacl units in mass of [tex]87.75[/tex] grams [tex]= 1.50[/tex]

Explanation:

Mass of one unit of NaCl or one atom of NaCl is  [tex]58.44[/tex] g/mol

The total mass of the NaCl is [tex]87.75[/tex]  grams.

The number of unit in [tex]87.75[/tex]  grams of NaCl is equal to [tex]87.75[/tex]  grams  divided by mass of one unit of NaCl i.e  [tex]58.44[/tex] g/mol

This can be mathematically be presented as

[tex]\frac{87.75}{58.44} \\[/tex] Units

[tex]1.50[/tex] Units

Number of Nacl units in mass of [tex]87.75[/tex] grams [tex]= 1.50[/tex]