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Bess [88]
4 years ago
13

Each chemical element is made up of only one kind of what

Chemistry
1 answer:
mafiozo [28]4 years ago
5 0

Each chemical element is made up of one kind of atom, so the answer is A

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Explanation:

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A container of oxygen gas is at STP. If this sample is put into an oven at 280 C, what would its pressure be, in atmospheres?
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Explanation:

Step 1:

Data obtained from the question. This include the following:

Initial pressure (P1) = 1atm

Initial temperature (T1) = 0°C = 0°C + 273 = 273K

Final temperature (T2) = 280°C = 280°C + 273 = 553K

Final pressure (P2) =...?

Step 2:

Determination of the new pressure of the gas.

Since the volume of the gas is constant, the following equation:

P1/T1 = P2/T2

will be used to obtain the pressure. This is illustrated below:

P1/T1 = P2/T2

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Cross multiply

273x P2 = 553

Divide both side by 273

P2 = 553/273

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Therefore, the new pressure of the gas will be 2.03atm

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