250 mlL flask. After the decomposition is complete, the gas has a pressure of 1.

Question

250 mlL flask. After the decomposition is complete, the gas has a pressure of 1.6 atm at a temperature af 33 C. How many moles of CO2 ges were generated? (ideal gas ation: PV = nRT.) mol Supporting Materials -Constants and Factors Periodic Table Supplemental Data Additional Materials Section 9.2 Tutorial 19.2 at a pressure of 728.0 mm Hg and a temperatune of 321.0 K. What will the volume be at a pressure af n A sampie of helium gas occuples a volume of 165.0 mL and a tempersture of 806.0 K? The combined gas law equation is given below. , ie, .and r, ant them. In this equation, Pru Vi, and T, are the initial pressure, volume, and temperature, respectively, and mt. Periodic Tabie

Explanation / Answer

Q1.

PV = nRT

substitute data

n = PV/(RT) = (1.6)(0.250)/(0.082*(33+273))

n = 0.015941 mol of CO2

Q2.

apply

P1V1/T1 = P2V2/T2

728*165/321 = 460*V2/806

V2 = 728*165/321 *806/460

V = 655.67 mL

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