- #1
Kiah Palmer
- 8
- 3
- Homework Statement
- 1. a) The first step in the production of sulphuric acid consists of burning sulphur to produce sulphur (IV) oxide. What’s the mass of sulphur required to produce 6.0 t of sulphur (IV) oxide?
b) A reaction is then brought about between sulphur (IV) oxide and oxygen in the presence of a catalyst to form sulphur (VI) oxide. What’s the mass of sulphur (VI) oxide produced from 6.0 t of sulphur (IV) oxide?
- Relevant Equations
- The unbalanced equations below will help you with questions
S8 + O2 -> SO2
SO2 + O2 -> SO3
1a) Step 1: Balance the equation - S8 + O2 -> SO2 = S8 + 8O2 -> 8SO2
Conversion (t to g) 6.00 t = 6x10^6 g
Molar mass SO2 = 23 + (2 x 16) = 64 g/mol
6x10^6 g / 64 g/mol = 9.375x10^4 mol SO2
reqired amount Sulphur = 9.375x10^4 mol / 8 mol = 1.172x10^4 mol S8
Molar mass S8 = (8 x 32) g/mol = 256 g/mol
256 g/mol x (1.172x10^4) mol = 3.0x10^6g S8 = 3.0 t S8
1b) Step 1: Balance the equation - SO2 + O2 -> SO3 = 2SO2 + O2 -> 2SO3
Molar mass SO3 = 32 + (3 x 16) = 80 g/mol
Molar Mass SO2 = 32 + (2 x 16) = 64 g/mol
(80 g/mol) / (64 g/mol) = 1.25 g/mol x 6.0x10^6 = 7.5 x 10^6 g = 7.5 tNOTE: I am pretty sure that 1a) is correct, however, it is the last part of question 1b) that I am having a bit of difficulty with. I have tried looking it up, however, the answers I am finding aren't making much sense either. Thank you in advance for your help, it is greatly appreciated.
Conversion (t to g) 6.00 t = 6x10^6 g
Molar mass SO2 = 23 + (2 x 16) = 64 g/mol
6x10^6 g / 64 g/mol = 9.375x10^4 mol SO2
reqired amount Sulphur = 9.375x10^4 mol / 8 mol = 1.172x10^4 mol S8
Molar mass S8 = (8 x 32) g/mol = 256 g/mol
256 g/mol x (1.172x10^4) mol = 3.0x10^6g S8 = 3.0 t S8
1b) Step 1: Balance the equation - SO2 + O2 -> SO3 = 2SO2 + O2 -> 2SO3
Molar mass SO3 = 32 + (3 x 16) = 80 g/mol
Molar Mass SO2 = 32 + (2 x 16) = 64 g/mol
(80 g/mol) / (64 g/mol) = 1.25 g/mol x 6.0x10^6 = 7.5 x 10^6 g = 7.5 tNOTE: I am pretty sure that 1a) is correct, however, it is the last part of question 1b) that I am having a bit of difficulty with. I have tried looking it up, however, the answers I am finding aren't making much sense either. Thank you in advance for your help, it is greatly appreciated.