Ch.5- 20, 23, 25

could you please help me get the correct answers i only have one try left

20 10 points Be sure to answer all parts. The air in a hot air balloon at 752 torr is heated from 23.0C to 51.0C. Assuming that the moles of air and the pressure remain constant, what is the density of the air at each temperature? (The average molar mass of air is 29.0 g/mol.) Density at 23.0C eBook References L Density at 51.0C 23 10 points Enter your answer in the provided box. Strike anywhere matches contain the compound tetraphosphorus trisulfide, which burns to form tetraphosphorus decaoxide and sulfur dioxide gas. How many milliliters of sulfur dioxide, measured at 685 torr and 22.1C, can be produced from burning 0.909 g of tetraphosphorus trisulfide? mL SOL ebook References 25 10 points Enter your answer in the provided box. Roasting galena (lead(II) sulfide) is an early step in the industrial isolation of lead. How many liters of sulfur dioxide, measured at STP, are produced by the reaction of 9.27 kg of galena with 205 L of oxygen gas at 220C and 2.00 atm? Lead(IT) oxide also forms. eBook LSO References