What career field/job would utilize ppm units

Chemistry

1 answer:

Ierofanga [76]3 years ago

4 0

Jobs in analytical chem tht is because it’s parts per million and when calculating the amount of an element in a mole

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How does matter change from one state to another?

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Give the ion notation for an atom with 34 protons and 36 electrons

alexandr402 [8]

Se - 78
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or
78/34 Se2-

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4 years ago

What identifies an ion

bezimeni [28]

Answer:

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yKpoI14uk [10]

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3 years ago

Plzz help<br> its science

Aleks04 [339]

The efficiency : 95%

<h3>Further explanation</h3>

Efficiency : the ratio between output and input work

In general, the value of the output of a machine is less than the value of the input because of the frictional force in the machine.

The greater the efficiency of the engine, the better the machine

Can be formulated :

$\tt E=\dfrac{W_{out}}{W_{in}}\times 100\%$

w output = 190 J

W input = 200 J

The efficiency :

$\tt E=\dfrac{190}{200}\times 100\%=95\%$

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3 years ago