Practice Problem :
Practice Problem Suppose we measure the mass of the vapor of an unknown compound contained in a 273 mL gas bulb. We find that the bulb contains 0.750 g of gas at 97.2 kPa pressure and 61 ºC. What is the molar mass ( M ) of the gas? = 78.5 g/mol Convert mL to L by moving the decimal point 3 places to the left