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A FLASK CONTAINS 3.2 G OF SO2.CALCULATE THE VOLUME OCCUPIED BY 3.2L OF SO2 AT 100 DEGREE C.

A FLASK CONTAINS 3.2 G OF SO2.CALCULATE THE VOLUME OCCUPIED BY 3.2L OF SO2 AT 100 DEGREE C.

Grade:12th pass

1 Answers

Arun
25750 Points
5 years ago
Dear Shipra
 
Number of moles of SO2 in flask = Given mass of SO2/Molar mass
                                                         = 3.2 g/ 64 g mol-1
                                                        = 0.05 moles

 Volume occupied by the SO2 at S.T.P : PV = nRT (1)
​P = 1 atm
​n = 0.05 moles
R = 0.0821 L atm mol-1 K-1
T = 273 K 
Putting the values in eq (1) we get
V = ​0.05 moles x  0.0821 L atm mol-1 K-1 x ​273 K/ 1 atm
   = 1.12 L
OR
Volume occupied of 1 mole of gas at STP = 22.4 L
Therefore volume occupied by 0.05 mole of gas = 22.4 L x 0.05
                                                                            = 1.12 L

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