A balloon is floaling around outside your window. The temperabure outside is -19

Question

A balloon is floaling around outside your window. The temperabure outside is -19 C, and the air pressure is 0800 atm. Your neighbor, who release balloon, tels you that he filed it with 4.90 moles of gas. What is the volume of gas inside this balloon? Express your answer to three significant figures and include the appropriate units View Available Hint(s) Value Units Submit ? Part B A 10.0 L gas eyinder is filed with 5.00 moles of gas. The tank is stored at 27 C. What is the pressure in the tank? Express your answer to three significant figures and inclade the appropriate units View Available Hints) Value Units Part C ceramics.E is currently operating at 1275 , 0, and the pressure·s t 075 atm How many moles of a r molecules are won the confes of the kin? Express your answer to three significant figures and include the appropriate units

Explanation / Answer

Ideal Gas Law=

PV = nRT

P is Pressure (atm), V is Volume (L), n is number of moles, R= ideal gas contant = 0.082 L.atm. K-1.mol-1, T is tempearatuire (K)

Part A:

Given, T = -19 oC = -19 +273.15 K = 254.15 K, P = 0.8 atm, n = 4.9 mol

Using Ideal Gas Law, we can calculate volume as follows-

V = (nRT) / P = (4.9 mol . 0.082 L.atm. K-1.mol-1 . 254.15 K ) / (0.8 atm )

V = 127.647 L

Part B :

Given, V = 10.0 L, T = -27 oC = 27 +273.15 K = 300.15 K, n = 5 mol

Using Ideal Gas Law, we can calculate volume as follows-

P = (nRT) / V = (5 mol . 0.082 L.atm. K-1.mol-1 . 300.15 K ) / (10 L)

P = 12.306 atm

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