Answer :
Answer:
CU2S5
Explanation:
Step#1: Obtain the mass of each element present in the grams.
we have 32.8 g of copper and 41.10 g sulphur.
Step #2: Determine the number of moles of each type of atom present
⇒32.8g of copper * (1 mole copper/63.646)= 0.5164 mole copper atoms.
⇒ 41.08g of sulphur * (1mole suplhur/32.065)= 1.2811 mole suplhur atoms.
Step#3: Divide the number of moles of each element by smallest number of moles.
⇒ 0.5164 mol Cu / 0.5164 = 1 mol Cu atoms.
⇒1.2811 mol S / 0.5164 = 2.480 mol S atoms
Step #5: Convert numbers to whole numbers.
⇒ 1 mol Cu atoms * 2 = 2 Cu atoms.
⇒ 2.480 S atoms * 2 = 5 S atoms
thus we have Cu2S5
Answer:
CuS.
Explanation:
Below is an attachment containing the solution.
Equation of the reaction:
2Cu(s) + S(g) --> Cu2S
