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masya89 [10]
3 years ago
10

(i) 1s 2 2s 2 2p 6 3s 1 (ii) 1s 2 2s 2 2p 6 3s 2 (iii) 1s 2 2s 2 2p 6 3s 2 3p 1 (iv) 1s 2 2s 2 2p 6 3s 2 3p 4 (v) 1s 2 2s 2 2p 6

3s 2 3p 5 The electron configuration of the atom that is expected to have a positive electron affinity is ________.
Chemistry
1 answer:
Marizza181 [45]3 years ago
5 0

Answer:

 (V) 1s 2 2s 2 2p 6 3s 2 3p 5

Explanation:

Electron Affinity can be defined as the energy associated with a neutral atom, when an electron is added to form a negative ion.

1s 2 2s 2 2p 6 3s 2 3p 5 , is the electronic configuration of Chlorine.

The electron affinity is positive because it is an exorthermic reaction, meaning that, energy was released during the addition of an electron to the atom.

Cl (g)  +  e-   ------->  Cl- (g)    = -349KJ/mol

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Mr. Ragusa asks Hassan to make silver crystals from the following reaction.
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Percentage yield = 61.7%

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SUMMARY:

From the balanced equation above,

340 g of AgNO₃ reacted to produce 216 g of Ag.

Next, we shall determine the theoretical yield of Ag. This can be obtained as follow:

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340 g of AgNO₃ reacted to produce 216 g of Ag.

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Thus, the theoretical yield of Ag is 32.4 g.

Finally, we shall determine the percentage yield of Ag. This can be obtained as follow:

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6 0
3 years ago
A tank of gas has partial pressures of nitrogen and oxygen equal to 1.61 × 104 kPa and 4.34 × 103 kPa , respectively.What is t
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Answer:

20.44\times 10^3 kPa is the total pressure of the tank.

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Partial pressures of nitrogen = p_{N_2}=1.61\times 10^4 kPa

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