A0.465 g sample of an unknown compound occupies 245 ml at 298 k and 1.22 atm. what is the molar mass of the unknown compound?a 0.465 g sample of an unknown compound occupies 245 ml at 298 k and 1.22 atm. what is the molar mass of the unknown compound? 26.3 g/mol 81.8 g/mol 33.9 g/mol 38.0 g/mol 12.2 g/mol
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Ответ:
P = 1.22 atm.
V = 245 ml = 0.245 L
n = 0.465/M and M=molar mass
R = 8.314 J/Kmol = 0.08206 Latm / K mol
T = 298 K
So, putting in the equation:
1.22 * 245/1000 = 0.465/M * 0.08206 * 298
M = 38.677 g/mol
Ответ: