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Kobotan [32]
3 years ago
5

How does Rutherford’s model of the atom compare with Thomson’s model?

Chemistry
2 answers:
Eduardwww [97]3 years ago
7 0

they both describe atoms as being made up of positive and negative matter

never [62]3 years ago
6 0

Answer:

Both Thomson and Rutherford's model corroborated the presence of negative charged electrons. However, Rutherford's model suggested that the electrons are not static but they revolve around the nucleus in fixed orbits.

Explanation:

J. J. Thomson's model of an atom also called as the 'plum-pudding' model preceded that of Rutherford's model. As per the former, every atom is composed of a negatively charged electrons dispersed in a cloud of positive charge. The electrons were compared to the 'plums' spread in the positive environment of the 'pudding'.

Rutherford conducted his famous gold foil experiment, in which he bombarded positively charged alpha particles against a thin sheet of gold foil and observed their trajectory of scattering. He noticed that most of the particles passed through however, some of them bounced back. Based on the model, it was concluded that

1) Most of the space inside an atom is empty

2) The mass of an atom is primarily concentrated in the nucleus core which is positively charged.

3) Negatively charged electrons revolve around the nucleus in fixed circular paths called orbits.

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Hey there,

So. . I believe is how you do it. I did 350 x 3.0 and it got me 1,050.
We always multiply it by when it come to the initial volume of the gas.

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At 850 K, the equilibrium constant for the reaction
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Answer:

Answers are in the explanation.

Explanation:

<em>Given concentrations are:</em>

  • <em>SO₂ = 0.20M O₂ = 0.60M SO₃ = 0.60M</em>
  • <em>SO₂ = 0.14M O₂ = 0.10M SO₃ = 0.40M </em>
  • <em>And SO₂ = 0.90M O₂ = 0.50M SO₃ = 0.10M</em>

<em />

In the reaction:

2SO₂(g) + O₂(g) ⇄ 2SO₃(g)

Kc is defined as:

Kc = 15 = [SO₃]² / [O₂] [SO₂]²

<em>Where concentrations of each species are equilbrium concentrations.</em>

<em />

Also, you can define Q (Reaction quotient) as:

Q = [SO₃]² / [O₂] [SO₂]²

<em>Where concentrations of each species are ACTUAL concentrations.</em>

<em />

If Q > Kc, the reaction will shift to the left until Q = Kc;

If Q < Kc, the reaction will shift to the right until Q = Kc

If Q = Kc, there is no net reaction because reaction would be en equilibrium.

Replacing with given concentrations:

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  • Q = [0.40M]² / [0.10M] [0.14M]² = 82; Q > Kc, → Reaction will shift to the left
  • Q = [0.10M]² / [0.50M] [0.90M]² = 0.015; Q < Kc → Reaction will shift to the right

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they move around and eventually come and join to make a solid

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