Respuesta :
1) first, we have to convert the grams to moles of AuCl3 using the molar mass of the molecule.
molar mass of AuCl3= 197 + (35.5 x 3)= 303.5 g/mol
73.4 g (1 mol AuCl3/ 303.5 g)= 0.242 moles
2) now. let's convert moles of AuCl3 to moles of chlorine gas (Cl2) using the mole-mole ratio
0.242 mol AuCl3 (3 mol Cl2/ 2 mol AuCl3)= 0.363 mol Cl2
3) finally, we convert moles to grams using the molar mass of Cl2.
molar mass of Cl2 = 35.5 x 2= 71.0 g/mol
0.363 mol Cl2 ( 71.0 g/ 1 mol)= 25.8 grams
molar mass of AuCl3= 197 + (35.5 x 3)= 303.5 g/mol
73.4 g (1 mol AuCl3/ 303.5 g)= 0.242 moles
2) now. let's convert moles of AuCl3 to moles of chlorine gas (Cl2) using the mole-mole ratio
0.242 mol AuCl3 (3 mol Cl2/ 2 mol AuCl3)= 0.363 mol Cl2
3) finally, we convert moles to grams using the molar mass of Cl2.
molar mass of Cl2 = 35.5 x 2= 71.0 g/mol
0.363 mol Cl2 ( 71.0 g/ 1 mol)= 25.8 grams
25.8 grams of chlorine gas can be produced from the decomposition of 73.4.
What is chlorine?
Chlorine is a chemical element whose chemical symbol is Cl and atomic number is 17.
Given,
The reaction
[tex]\bold{2AuCl_3 = 2 Au + 3 Cl_2}[/tex]
Step 1: Converting the grams to moles
The molar mass of [tex]\bold{AuCl_3 }[/tex] is 303.33 g/mol
[tex]73.4 g \; \dfrac{1 mol\; AuCl3}{303.5 g} = 0.242\; moles[/tex]
Step2: Calculating the mole ratios
[tex]0.242\; mol\; AuCl_3 \;\dfrac{3 mol\; Cl_2}{2 mol\; AuCl_3} = 0.363\; mol\; Cl_2[/tex]
Step 3: Converting moles to grams
[tex]\bold{molar\; mass\; of Cl_2 = 35.5 \times 2= 71.0\; g/mol}[/tex]
[tex]0.363\; mol\; Cl_2 ( 71.0 g/ 1 mol) = 25.8 grams[/tex]
Thus, the quantity of chlorine gas is 25.8 grams.
Learn more about chlorine, here:
https://brainly.com/question/1127028