The mass of a liter of oxygen at standard conditions of temperature and pressure is 1.43 gm & that of a liter of SO2 is 2.857 g. (1) How many molecules of each gas are there in this volume? (2) What is the mass in grams of a single molecule of each gas? (3) What are the molecular masses if SO2 and O2 respectively?

Asked by  | 7th May, 2012, 12:01: AM

Expert Answer:

No of moles of oxygen = 1.43 / 32
                                 = .044 mole
no of molecules of oxygen = .044 x 6.02 x 10 23

Answered by  | 9th May, 2012, 08:12: PM

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