Sodium is reacted with chlorine to produce sodium chloride. How much sodium chloride is produced when 45 grams of sodium reacted.

114.7g

Explanation:

Given parameter:

Mass of Na = 45g

Unknown:

Mass of produced NaCl  = ?

Solution:

The reaction equation is shown below;

          2Na + Cl₂   →   2NaCl

Now, we solve from the known to the unknown. The known here is the mass of Na and it is sufficient to solve the problem;

         Number of moles  =

 Molar mass of Na = 23g/mol

            Number of moles  =   = 1.96moles

               2 mole of Na produced  2 moles of NaCl

              1.96 moles of Na will produce 1.96 moles of NaCl

Mass of NaCl  = number of moles x molar mass

                         = 1.96 x [23 + 35.5]

                         = 114.7g

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