A sample of 0.400 moles of nitrogen occupies 0.800 L.Under the same conditions,what number of moles occupies 1.200 L?
A) 0.600 moles
B) 0.417 moles
C) 2.40 moles
D) 0.216 moles

Question

Quizplus · Accepted Answer

The amount of gas and its volume are directly proportional under the same conditions of temperature and pressure (Avogadro's law). So, if 0.400 moles occupy 0.800 L, then to find the moles that occupy 1.200 L, you can set up a proportion: (0.400 moles / 0.800 L) = (x moles / 1.200 L). Solving for x gives 0.600 moles.

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