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astra-53 [7]
2 years ago
14

How many protons, neutrons, and electrons are there in a neutral atom of 60 Co (cobalt- 60 )?

Chemistry
1 answer:
Semenov [28]2 years ago
4 0
Cobalt is comprised of 27 protons, 33 neutrons, and 27 electrons
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Answer:

Three times with 5 ml will yield more

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Let x represent the amount yield

Kd = (x/15) / ((50-x) / 15) where Kd = 1.5

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when extraction  three times

1st extraction

(x1/5) / ((50 - x1) / 15) = 1.5

3x1 / 50 - x1 = 1.5

3x1 = 75 - 1.5x1

3x1 + 1.5x1 = 75

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second extraction

(x2/ 5) / (33.33 - x2 ) / 15) = 1.5

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3x2 = 1.5(33.33 - x2)

3x2 = 49.995 - 1.5x2

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Third extraction

(x3/5) / ((22.22 - x3) / 15) = 1.5

3x3 = 1.5 ( 22.22 - x3)

3x3 + 1.5x3 = 33.33

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total extraction = x1 + x2 + x3 =16.67 + 11.11 + 7.41 = 35.19 mg

the three times extraction using 5ml yields 5.19 mg more

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