Mass NaCl produced : 171.81 g
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
Na₂SO₃ : 176 g
MW : 126,043 g/mol
mol :
[tex]\tt \dfrac{176}{126.043}=1.4[/tex]
AlCl₃ : 65 g
MW : 133,34 g/mol
mol :
[tex]\tt \dfrac{65}{133.34}=0.49[/tex]
Reaction
Na₂SO₃ + 2 AlCl₃ ⇒ Al₂(SO₃)₃ + 6NaCl
limiting reactants:
mol ratio(mol/coefficient) Na₂SO₃ : 2 AlCl₃ =
[tex]\tt \dfrac{1.4}{1}:\dfrac{0.49}{2}=1.4:0.245[/tex]
AlCl₃ ⇒ limiting reactants(smaller ratio)
mol NaCl from limiting reactants :
[tex]\tt \dfrac{6}{1}\times 0.49=2.94[/tex]
mass NaCl
[tex]\tt mol\times MW=2.94\times 58,44~g/mol=171.81~g[/tex]
