The reaction for the burning of one type of match tip is as follows: P4S3(s) + 8 O2(g)----> P4O10(g) + 3 SO2(g) What volume in L of SO2 at STP can be produced by the burning of 1.00 g P4S3 in excess O2?
P4S3(s) + 8 O2(g)----> P4O10(g) + 3 SO2(g)
mols P4S3 = grams/molar mass = ?
Convert mols P4S3 to mols SO2 using the coefficients in the balanced equation. That's 1 mol P4S3 = 3 mols SO2.
1 mol SO2 at ATP occupies 22.4 L. Convert mols SO2 you have to L.
Post your work if you get stuck.
To determine the volume of SO2 produced at STP (standard temperature and pressure) by the burning of 1.00 g of P4S3, we need to follow a step-by-step process. Here's how we can approach this problem:
1. Calculate the number of moles of P4S3:
- Use the molar mass of P4S3 to convert grams to moles.
- The molar mass of P4S3 can be calculated by multiplying the atomic masses of phosphorus (P) by 4 and the atomic mass of sulfur (S) by 3, then adding them together.
2. Use the balanced chemical equation to find the mole ratio between P4S3 and SO2:
- In the balanced equation, the coefficient of P4S3 is 1, and the coefficient of SO2 is 3.
- This means that for every mole of P4S3 burned, 3 moles of SO2 are produced.
3. Convert moles of SO2 to volume at STP:
- At STP, one mole of any gas occupies 22.4 liters.
- Convert the moles of SO2 obtained in step 2 to liters using this conversion factor.
Let's calculate each step:
Step 1: Calculate moles of P4S3
- The molar mass of P4S3 is (4 x molar mass of P) + (3 x molar mass of S).
- Determine the molar mass of P and S from the periodic table.
- Multiply the molar mass of P by 4 and the molar mass of S by 3.
- Add the results together to obtain the molar mass of P4S3.
- Divide the given mass of P4S3 by the molar mass to obtain moles.
Step 2: Determine the mole ratio between P4S3 and SO2
- Look at the balanced chemical equation: P4S3(s) + 8 O2(g) -> P4O10(g) + 3 SO2(g)
- The coefficient of P4S3 is 1, and the coefficient of SO2 is 3.
- This means the mole ratio of P4S3 to SO2 is 1:3.
Step 3: Convert moles of SO2 to volume at STP
- Multiply the moles of SO2 obtained in step 2 by the conversion factor: 1 mole SO2 = 22.4 liters of SO2 at STP.
By following these steps, you can calculate the volume in liters of SO2 produced at STP by burning 1.00 g of P4S3 in excess O2.