Question

23 gm of sodium when heated in current of dry chlorine produces 58.5 gm of sodium chloride. The equivalent weight of sodium is​

Answer 1

Dude, the reaction is:

2Na + Cl₂ = 2NaCl

So, molar mass of sodium = 23g

mass of 2 moles of sodium = 2 x 23 = 46g

One sodium atom loses one electron

So, two atoms of sodium will lose 2 electrons

Hence equivalent weight = Mass of cation/no. of electrons lost

Mass of 2 moles of Na⁺ = 46

No. of electrons lost = 2

Equivalent weight = 46/2 = 23

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