Respuesta :

premedchemist
The molecular formula for sodium chloride is NaCl. The sum of their atomic weights is (22.99 grams/mole + 35.45 grams/mole) = 58.44 grams/mole
take (17.0 grams)/(58.44 grams/mole), which equals 0.291 moles of NaCl.

mahima6824soni

The number of moles in 17.0g sodium chloride is 0.291 moles

What are moles?

In the International System of Units, Mole is the base unit of the amount of any substance.

The mass of NaCl is 17.0 g

The molar mass of Na is 22.99 g/mol

The molar mass of Cl is 35.45 g/mol

The molar mass of NaCl will be

(22.99 g/mol + 35.45 g/mol) = 58.44 g/mol

[tex]\rm Number\;of \;moles= \dfrac{mass}{molar\;mass}\\\\\\\rm Number\;of \;moles= \dfrac{17.0 g}{58.44\; g/m} =0.291 mol[/tex]

Thus, the number of moles in 17.0g sodium chloride is 0.291 moles.

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