Considering ideal gas behavior, the volume of 1 mol of gas at STP is 22.4 L; then the volume occupied by 1.9 moles is 1.9mol*22.4L/mol = 42. 6 L.
Answer: 43 L
Answer:
Explanation:
The law of multiple proportions say that two elements, A and B, are able to combine with each other to form distinct compounds, the different masses of B that bind to a certain mass of A, are in relation of integers and simple numbers.
2SO₂ → S₂ + 2O₂
Mass S₂=2 . 32g= 64g
Mass 2O₂=4 . 16g=64g
∴ 64/64=1 ⇒ One produced 1.002 g S for every gram of O, the relation is 1:1
2SO₃ → S₂ + 3O₂
Mass S₂=2 . 32g= 64g
Mass 3O₂=6 . 16g=96g
∴ 64/96= 2/3 ⇒ It is produced 0.668 g S for every gram of O, the relation is 2:3.
To sum up, these results are consistent with the law of multiple proportions because the results are integers and simple numbers.
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Answer: Geotropism allows the plants to correctly orient themselves for growth.
Explanation:
1) Chemical reaction:
2C2H2 + 5O2 ---> 4CO2 + 2H2O
2) Molar ratios
2 mol C2H2 : 5 mol O2 : 4 mol CO2 : 2 mol H2O
3) proportion with 35.0 mol C2H2
2 mol C2H2 / 4 mol CO2 = 35.0 mol C2H2 / x
=> x = 35.0 mol C2H2 * 4 mol CO2 / 2 mol C2H2 = 70.0 mol CO2.
Answer: 70.0 mol CO2