The partial pressure of neon is 24.0498 atm.
To calculate the partial pressure of neon, we can use the ideal gas equation,
PV = nRT
Pne = nRT / V
Number of moles of neon = Mass of neon / Mass of one mole of neon
n = 20 / 20
n = 1 mole
R = 0.0821 L atm K-1 mol-1
T = 31.5 °C
T = 273.15 + 31.5
= 304.65 K
V = 1040.0ml
Pne = 1 * 0.0821 * 304.65 / 1040.0 * 10-3
Pne = 24.0498 atm
The partial pressure of neon is 24.0498 atm.
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