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slamgirl [31]
3 years ago
7

suppose the mass spectrum of a hypothetical monatomic element X contains a signal at mass number 13 and another of identical hei

ght at mass number 15
Chemistry
1 answer:
Illusion [34]3 years ago
6 0
Average the numbers 13 and 15 to get 14amu.
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A sample of gas occupies a volume of 61.5 mL . As it expands, it does 130.1 J of work on its surroundings at a constant pressure
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Answer:

the final volume of the gas is V_2 = 1311.5 mL

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Given that:

a sample gas has an initial volume of 61.5 mL

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Since the process does 130.1 J of work on its surroundings at a constant pressure of 783 Torr. Then, the pressure is external.

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P_{ext} = 783 \ torr \times \dfrac{1 \ atm}{760 \ torr}

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ΔV = \dfrac{130.1 \ J  \times \dfrac{1 \ L  \ atm}{ 101.325 \ J}  }{1.03 \ atm }

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So, the order from the slowest to the fastest rate of effusion is:

<em>Chlorine, oxygen, nitrogen, hydrogen.</em>

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