sulphur burns in oxygen to give sulphur dioxide. if 16 g of sulphur dioxide burns in x cc. of oxygen, calculate the amount of potassium nitrate which must be heated to produce x cc of oxygen.
Asked by drashtichauhan75 | 21st Mar, 2019, 07:35: PM
The reaction for burning of sulphur is,
S = 32, K = 39 , N = 14, O = 16
Moles of S reacted =
0.5 mol of S needs 0.5 mol of Oxygen,
To create confusion, x cc is mentioned in the question, which has no significant use.
So we know that Sulphur burns in 0.5 mol Oxygen.
The thermal decomposition of Potassium nitrate :
2 mols of KNO3 gives 1 mol of O2
0.5 mol of O2 will be produced by 1 mol of KNO3
1mol of KNO3 = 101 g
Therefore the amount of KNO3 required to produce oxygen is 101 g.
Answered by Varsha | 21st Mar, 2019, 09:03: PM
- b) one ..
- Find the volume of oxygen at STP required for the complete combustion of 2 litres of carbon monoxide at S.T.P.
- why mole concept important
- A mixture of hydrogen and chlorine occupying 36 cm3 was exploded. On shaking it with water, 4cm3 of hydrogen was left behind. Find the composition of the mixture.
- What volume of oxygen at STP is required to affect the combustion of 11 litres of ethylene [C2H4] at 273o C and 380 mm of Hg pressure? C2H4+3O22CO2 + 2H2O
- Calculate the number of molecules in 1 kg of Calcium Chloride.
- No. of moles in 32g of sulphur molecule.
- Calculate the number of ions and total charge in 3 gram CO3^2-
- What is the mass of calcium carbonate precipitated when calcium chloride solution is added to a solution containing 21.2g of sodium carbonate? RMM of sodium carbonate = 106 RMM of calcium carbonate = 100
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Verify mobile number
Enter the OTP sent to your number