what is the mass of 12.3 moles of helium (he)?
0.325 g he
3.07 g he
49.2 g...
Answers: 2
Chemistry, 21.06.2019 17:00
Initially, the balloon had 3.0 liters of gas at a pressure of 400 kpa and was at a temperature of 294 k. if the balloon is cooled to 277 k and its volume decreased to 1 l, what will the new pressure in the balloon be?
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