How many moles of gas are in a gas sample occupying 0.738L at 135 mmHg and 30*C?
Please help me work this out
chem help?
2017-10-18 10:55 am
回答 (1)
2017-10-18 11:17 am
✔ 最佳答案
Pressure, P = (135/760) atmVolume, V = 0.738 L
Gas constant, R = 0.08206 atm L / (mol K)
Temperature, T = (273 + 30) K = 303 K
Gas law: PV = nRT
Then, n = PV/(RT)
No. of moles of gas, n = (135/760) × 0.738 / (0.08206 × 303) mol = 0.00527 mol
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