SCIN 131 An experiment shows that a 105-mL gas

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SCIN 131 An experiment shows that a 105-mL gas

An experiment shows that a 105-mL gas sample has a molar mass of  253 grams at a pressure of  761 mm Hg and a temperature of  38.9^oC. What is the  mass of the gas sample at these conditions ? R =  0.0821  L atm / mol K