Suppose you had 1.0 mol samples the following gases at STP. If the volume of each of the samples of gas was reduced to one tenth
of its original size and the temperature remained the same, which gas would have the lowest pressure?
A) He
B)Kr
C)N2
D)NO
E)O2
A) He
B)Kr
C)N2
D)NO
E)O2
2 answers:
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Answer:
32,0 days.
Explanation:
The radioactive decay follows:
Where Nt is the concentration in a time t (6,22x10¹⁷), N₀ is the initial concentration (9,95x10¹⁸) Half life time is 8,0 days and t is the time it take to drop this concentration. Replacing:
It take <em>32,0 days</em>
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I hope it helps!
Answer:
The answer is
<h2>0.103 g/mL</h2>Explanation:
The density of a substance can be found by using the formula
From the question
mass = 4 g
volume = 39.0 mL
The density is
We have the final answer as
<h3>0.103 g/mL</h3>Hope this helps you