Respuesta :
Answer:
11.875g of CS2
Explanation:
First, we try and get the reaction being talked about as the question doesn’t seem complete. From the question, we can see that that CS2 is used in the production of SO2. So let’s find this reaction!
Yes, the probable reaction is below;
CS2 + CO2 → 3C + 2 SO2
Carbon sulphide is reacting with carbon iv oxide to yield elemental solid carbon and sulphur iv oxide.
Let’s proceed to answer the question now!
Since 15.0g of SO2 is to be produced, with a percentage yield of 75%, the theoretical yield of SO2 will be;
15 * 100/75 = 20g
We can convert this value to moles by using the molar mass of SO2. The Molar mass of SO2 is 32 + 2(16) = 64g/mol
The number of moles of SO2 is thus 20/64 = 0.3125moles
We now proceed to get the number of moles of CS2.
From the reaction,
1 mole CS2 yielded 2 moles SO2
x mole CS2 will yield 0.3125 moles SO2
This x = 0.3125/2 = 0.15625 mole CS2
We then use the molar mass of CS2 to get the actual amount in grammes
The molar mass of CS2 is 12 + 32(2) = 12 + 64 = 76g/mol
The mass is thus 76 * 0.15625 = 11.875g
