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irakobra [83]
3 years ago
11

Atomic emission spectra are produced when the light emitted by an element passes through a prism. Which of the following stateme

nts is true regarding these spectra?
A. All elements produce the same atomic spectra.
B. Elements produce continuous spectra.
C. Elements produce spectra with only a few distinct lines.
Chemistry
1 answer:
xenn [34]3 years ago
3 0
Option C: elements produce spectra with only few distinct lines.

The spectra are not continuos and are different for every element. This permits to identify elements.
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<h2><u>Answer:</u></h2>

(These are not rounded to the correct decimal)

130.94 atm

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<h2><u>Explanation:</u></h2>

<u></u>

PV = nRT

V = 245L

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R = 0.08206 (atm) , 8.314 (kPa) , 62.4 (mmHg)

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How I found (n).

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Now, plug all the numbers into the equation.

Pressure in atm = (1302.5)(0.08206)(300.15) / 245 = 130.94 atm (not rounded to the correct decimal)

Pressure in kPa = (1302.5)(8.314)(300.15) / 245 = 13,266.6 kPa (not rounded to the correct decimal)

Pressure in mmHg = (1302.5)(62.4)(300.15) / 245 = 99,571.4 mmHg (not rounded to the correct decimal)

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