Questions: A 0.437 g sample of an unknown pure noble gas occupies a volume of 0.335 L at a pressure of 1.00 atm and a temperature of 100.0°C. The unknown gas is most likely krypton, xenon, helium, argon, neon.
Transcript text: A 0.437 g sample of an unknown pure noble gas occupies a volume of 0.335 L at a pressure of 1.00 atm and a temperature of $100.0^{\circ} \mathrm{C}$. The unknown gas is most likely
krypton
xenon
helium
argon
neon
Solution
Solution Steps
Step 1: Convert Temperature to Kelvin
To use the ideal gas law, we need the temperature in Kelvin. Convert from Celsius to Kelvin:
\[
T = 100.0 + 273.15 = 373.15 \, \text{K}
\]
Step 2: Use the Ideal Gas Law
The ideal gas law is given by:
\[
PV = nRT
\]
where:
\( P = 1.00 \, \text{atm} \)
\( V = 0.335 \, \text{L} \)
\( R = 0.0821 \, \text{L atm K}^{-1} \text{mol}^{-1} \)