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rconyers00
12.10.2019 •
Chemistry
How does the energy of electrons change as you move far away from the nucleus
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Ответ:
Ответ:
Ответ:
Mass = 156.195 g
Explanation:
Given data:
Mass of SO₂ = 125 g
Mass of O₂ = 50.00 g
Mass of SO₃ produced = ?
Solution:
2SO₂ + O₂ → 2SO₃
Number of moles of SO₂:
Number of moles = mass/molar mass
Number of moles = 125 g/ 64.1 g/mol
Number of moles = 1.95 mol
Number of moles of oxygen:
Number of moles = mass/molar mass
Number of moles = 50.00 g/ 32 g/mol
Number of moles = 1.56 mol
Now we will compare the moles of SO₃ with SO₂ and O₂
O₂ ; SO₃
1 ; 2
1.56 : 2/1×1.56 = 3.12 mol
SO₂ ; SO₃
2 ; 2
1.95 : 1.95
Less number of moles of SO₃ are produced by SO₂ it will act as limiting reactant:
Mass of SO₃ :
Mass = number of moles × molar mass
Mass = 1.95 mol × 80.1 g/mol
Mass = 156.195 g