Answer:

Explanation:
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In this case, according to the given data of volume, pressure and temperature, it is possible to infer this problem can be solved via the combined gas law:

Thus, regarding the question, we evidence we need V2, but first we make sure the temperatures are in Kelvins:

Then, we obtain:

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I think the answer that you are looking for is B but im not a 100% sure
Answer:
1g/ml @ 4 degrees C by definition
Explanation: