# Problem: A 355 mL container holds 0.146 g of Ne gas and an unknown amount of Ar gas at 35°C, and a total pressure of 626 mmHg. Calculate the number of moles of Ar gas present. a) 7.24 x 10 –3 mol Ar b) 4.34 x 10 –3 mol Ar c) 4.27 x 10 −3 mol Ar d) 1.00 x 10 −2 mol Ar e) 5.79 x 10 −3 mol Ar

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###### Problem Details

A 355 mL container holds 0.146 g of Ne gas and an unknown amount of Ar gas at 35°C, and a total pressure of 626 mmHg. Calculate the number of moles of Ar gas present.

a) 7.24 x 10 –3 mol Ar

b) 4.34 x 10 –3 mol Ar

c) 4.27 x 10 −3 mol Ar

d) 1.00 x 10 −2 mol Ar

e) 5.79 x 10 −3 mol Ar

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Our tutors have indicated that to solve this problem you will need to apply the The Ideal Gas Law concept. You can view video lessons to learn The Ideal Gas Law. Or if you need more The Ideal Gas Law practice, you can also practice The Ideal Gas Law practice problems.

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Based on our data, we think this problem is relevant for Professor Petros' class at UNT.