8g of sulphur is completely burnt to get sulphur dioxide. The number of molecules of SO2 obtained is
Answers
Answer:
150550000000000000000000 molecules
Explanation:
Reletive Atomic Mass of Sulphur = 32g
Reletive Atomic Mass of Oxygen= 16g
Since No. of moles = Mass / Relative Molecular Mass,
No. of moles of S burnt = 8g/32g
= 0.25 moles
From the equation,
1 mole of Sulphur will react with 1 mole of O2 to form 1 mole of S02
Hence,
0.25 mole of Sulphus will react with .025 mole of O2 to form 0.25 mole of SO2
Mass of oxygen consumed = 0.25 moles x (2 x 16g)
= 8g
Mass of SO2 produced = 0.25 moles x ( 32g + (2 x 16g))
=0.25 mole x 64g
=16g
And we know there is 0.25 moles of SO2 so we can use Avogadro's number 6.022 x 10^23 to calculate how many molecules there are. 0.25 x 6.022 x 10^23 which would equal to 150550000000000000000000 atoms/molecules
Answer:
150550000000000000000000 molecules
Explanation:
Reletive Atomic Mass of Sulphur = 32g
Reletive Atomic Mass of Oxygen= 16g
Since No. of moles = Mass / Relative Molecular Mass,
No. of moles of S burnt = 8g/32g
= 0.25 moles
From the equation,
1 mole of Sulphur will react with 1 mole of O2 to form 1 mole of S02
Hence,
0.25 mole of Sulphus will react with .025 mole of O2 to form 0.25 mole of SO2
Mass of oxygen consumed = 0.25 moles x (2 x 16g)
= 8g
Mass of SO2 produced = 0.25 moles x ( 32g + (2 x 16g))
=0.25 mole x 64g
=16g
And we know there is 0.25 moles of SO2 so we can use Avogadro's number 6.022 x 10^23 to calculate how many molecules there are. 0.25 x 6.022 x 10^23 which would equal to 150550000000000000000000 atoms/molecules
Explanation: