Question

2

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

Answer 1

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 :

`\tt (4.6)/(23)=0.2`

mol NaCl :

`\tt (11.7)/(58,44 )=0.2`

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

mol Cl₂:mol Na=2:1

mol Cl₂ =

`(1)/(2)* 0.2=0.1`

mass Cl₂ :

MW Cl₂ = 71 g/mol

`\tt 0.1* 71=7.1~g`