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1.1.Question : (TCO 6) A sample of helium gas occupies 520 mL at 79 mmHg.For a gas sample at constant temperature, determine the volume of helium at 45 mmHg.
Question 2. Question : (TCO 6) A gas at a temperature of 105 degrees C occupies a volume of 250 mL. Assuming constant pressure, determine the volume at 10 degrees C.
Question 3. Question : (TCO 6) For a gas at standard temperature and pressure with a density of 3.5 g/L, determine its molar mass.
Question 4. Question : (TCO 6) Calculate the volume, in liters, of a 1.5 mol H2S(g) at 50 degrees C and 2 atm.
Question 5. Question : (TCO 8) According to the Bronsted-Lowry definition, which chemical in the following reaction is the acid? H3O H2PO4-à H3PO4 H2O