Answered

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How many moles of a gas sample are in a 5.0 L container at 373 K and 203 kPa?

0.33 mole

0.66 mole

1.11 moles

3.05 moles

Sagot :

maacastrobr

Answer:

0.33 moles.

Explanation:

Assuming the gas is ideal, we can solve this problem by using the following formula:

  • PV = nRT

Where:

  • P = 203 kPa
  • V = 5.0 L
  • n = ?
  • R = 8.314 kPa·L·mol⁻¹·K⁻¹
  • T = 373 K

We input the data:

  • 203 kPa * 5.0 L = n * 8.314 kPa·L·mol⁻¹·K⁻¹ * 373 K
  • n = 0.327 mol

The answer is thus the first option, 0.33 moles.

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