A chemist performs the synthesis of sodium chloride from its elements. The chemist begins with 46 grams of sodium. How many moles of chlorine are needed? 2 Na + Cl2 → 2 NaCl

Md Ariful Islam

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Md Ariful Islam

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$"Moles of sodium "=(46.0*g)/(22.9*g*mol^-1)=2*mol$.

Given your equation, clearly we need the ONE mole of $Cl_2$ gas. What is the mass of this quantity of chlorine?

It is fact that all of the elemental gases EXCEPT for the Noble Gases are diatomic: $N_2, O_2, F_2, Cl_2$. Of course, all the halogens, as the , are diatomic, but not all are gaseous.

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