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https://session masteringchemistry.com/myct/itemView?assignmentProblemiD-877133988eview print&koffset-next; For More Practice 5.7-Enhanced - with Feedback HW CHS-Google Chrome Secure CH5 For More Practice 5.7- Enhanced - with Feedback You may want to reference (D pages 212-215) Section 5.5 while completing this problem Part A The density of a gas is 2.08 g/L at a temperature of 22 C and a pressure of 0.785 atm. Calculate the molar mass of the gas. Express the molar mass to three significant figures and include the appropriate units. ANSWER molar mass Type here to search

Explanation / Answer

PV = nRT

PV = WRT / MW

P = (W/V) RT / MW

P = d RT /MW

MW = d RT / P

MW = 2.08 x 0.0821 x 295 / 0.785

MW = 64.2 g /mol

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