aileenlopezz
20.12.2019 •
Chemistry
Achemical reaction with an initial quantity of 1.35 moles of gas is performed in a 4.50-l flask at 24.7°c and under 1.07 atm of pressure. after the reaction is complete the final temperature is 55.2°c with a pressure of 2.92 atm. if the volume is limited by the size of the flask, how many moles of gas are present in the container after the reaction is complete?
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Ответ:
0.488 mol
Explanation:
By the ideal gas law:
PV = nRT
Where P is the pressure, V is the volume, n is the number of moles, R is the gas constant (0.082 atm.L/mol.K), and T is the temperature in K. Thus, after the reaction:
P = 2.92 atm
V = 4.50 L
T = 55.2°C + 273 = 328.2 K
PV = nRT
n = PV/RT
n = (2.92*4.50)/(0.082*328.2)
n = 0.488 mol
Ответ:
1.34×10^-8 cm
Explanation: