What is the mass of NaCl produced when 2.0 moles of chlorine gas are reacted with excess sodium? The equation is given.
2 Na + Cl2 → 2 NaCl

Mass = 234 g

Explanation:

Given data:

Mass of NaCl produced = ?

Moles of chlorine = 2.0 mol

Solution:

Chemical equation:

2Na + Cl₂    →     2NaCl

now we will compare the moles of NaCl with chlorine gas.

           Cl₂           :          NaCl

             1            :           2

            2.0         :         2/1×2.0 = 4.0 mol

Mass of NaCl;

Mass = number of moles × molar mass

Mass = 4.0 mol × 58.5 g/mol

Mass = 234 g

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