Question

Need help answering all questions; 7,8,9,10,11,12, and 13. Thanks

7. How many mole of nitrogen gas will occupy a 5.00 L container at STP? 8. A sample of hydrogen sulfide gas at 760 torr and 25 deg C in a 2.00 L container is allowed to expand into a 10.0 L container at 25 deg C, What is the pressure of the gas in 10.0 L container? 9. Calculate the volume of 2.00 g of sulfur dioxide at STP? 10. What is the mass in grams of KCIO, that must be used to produce 1.5 L of oxygen, measured at 18 deg C and 0.950 atm? KCIO, - KCI + O2 11. A 0.300 g sample of a liquid was vaporized at 15 deg C. The vapor occupied 180 mL under a pressure of 0.998 atm. What is the molar mass of the liquid? 12. A gas has a density of 0.991 g/L at 75 deg C and a pressure of 390.0 torr. What is the molecular mass of the gas? 13. 0.96 g of vapor of a volatile liquid has two hudred fifty milliliter of volume at STP. Find the molecular formula of the volatile liquid if it empirical formula is CH.

Answer 1

at STP T = 273.15k latm. po adon s R = 0.08212 mok gar Conen V= 5ool pra NRT (ale to ideal gas haw) na nef g notee of pv (latm) (5.002) nitrogen x 273-15k n = 8.22307 model RT 0.0821 Lohm rotok know T2 Ps liven Tu Pia 760 tal W = 2.002 1: 25 - 290k N2 i 90.0L T2 25°c = 298k P₂ PV, Tz 766x2.00 TIZ P2 = 152 tori Given mast of Soz 2.oog 9.00/69243 nogomdee of so, = 0.03125 moles at STP T: 273.25K, Palatom. (1.03125)*(0-0821)×(273-15) vanie ART loan 0.7008 Lit kelit Ozi 200 Kelo, no ano of moles of PV RT P (6.950 atm) « (152) 10:0821) > (18429315) orygen

gnolet of 2 O2 = 0.06 moles (1.1) natal lectio) nog mestay ratio) neymadas greeteg a 6.0 Genetes math of kelog = (0.06 modas) x (182.55 3/4) 7.306 gland xRxT mal PV = motal mass molal mast - (0.300 9) x 6.052 1. do ) x (15127519 Co. 998 atm (180x161) 39.507 9/mnd 0.991.972 elentity mas volume ਅਜੇ 127 15) 12 0.9919 y 0.0821* 3900 lam modal mast Im x RXT V/у Р 760 552.9/od p. latm at stp - T = 273.15k , 0.969 molal mast = 0.0821 × 273.15 latm x 250 7000 86.114 g/mol 86.114 modal most Empirical mast mole Cutal fine : (61)