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Yuki888 [10]
3 years ago
5

The hypothesis states that the fraction of radioactive nuclei after N half-lives is 0.5n.

Chemistry
2 answers:
Dimas [21]3 years ago
8 0

Answer:

The answers to the next parts are:

Explanation:

C) 0.5 • 0.5 • 0.5 . . .  • 0.5.

C) the number of half-life cycles

NNADVOKAT [17]3 years ago
7 0
The fraction of nuclei still radioactive after any half-life cycle.
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A sample of oxygen gas in one container has a volume of 20.0mililiter at 297 K and 101.3 kPa. The entire sample is transferred t
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Answer: V_2=\frac{101.3kPa\times 20.0ml\times 283K}{297K\times 94.6kPa}

Explanation:

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,:

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

V_2=\frac{P_1V_1T_2}{T_1P_2}

where,

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V_1 = initial volume of gas = 20.0 ml

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T_2 = final temperature of gas = 283K

Now put all the given values in the above equation, we get the final volume of gas.

V_2=\frac{101.3kPa\times 20.0ml\times 283K}{297K\times 94.6kPa}

V_2=20.4ml

Thus the correct numerical setup for calculating the new volume is \frac{101.3kPa\times 20.0ml\times 283K}{297K\times 94.6kPa}

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