2
4.6 g of sodium reacts with chlorine to produce 11.7 g of sodium chloride.
What mass of chlorine reacted?

Respuesta :

Mass of chlorine reacted : 7.1 g

Further explanation

The reaction equation is the chemical formula of reagents and product substances

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

Reaction

2Na(s) + Cl₂(g) → 2NaCl(s).

mol Na :

[tex]\tt \dfrac{4.6}{23}=0.2[/tex]

mol NaCl :

[tex]\tt \dfrac{11.7}{58,44 }=0.2[/tex]

limiting reactant = Na(mol NaCl from mol Na, mol ratio : 2 : 2)

mol Cl₂:mol Na=2:1

mol Cl₂ =

[tex]\dfrac{1}{2}\times 0.2=0.1[/tex]

mass Cl₂ :

MW Cl₂ = 71 g/mol

[tex]\tt 0.1\times 71=7.1~g[/tex]