Calculate the density of NO_2 gas ¡n a 3.50 L tank al 780.0 torr and 37.0 degree

Question

Calculate the density of NO_2 gas ¡n a 3.50 L tank al 780.0 torr and 37.0 degree C. 10.0 grams of argon and 20.0 grains of neon are placed in a 1200.0 ml container at 25.0 degree C. What is the partial pressure of neon? MULTIPLE CHOICE QUESTIONS. 3 Points each Each of the following questions is followed several responses. Select ONLY ONE as your answer and place on the ANSWER SHEET provided The volume of a sample of gas (2.49 g) was 752 mL at 1.98 atm and 62 degree C. The gas is SO_2 SO_3 NH_3 NO_2 Ne The density of is 0.900 g/L at STP. 2

Explanation / Answer

4.

PV = nRT

n = m/MW

PV = m/MW*RT

D = m/V so

D = P*MW/(RT)

D = (780/760 )*3.5/(0.082 * (37+273))= 0.141310 g/L

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