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O 18.9 g Question 28 5 pts In a given diffusion apparatus and under identical conditions,...
A noble gas has a density of 0.173 g/L at a temperature of 328.15 K and a pressure of 1.168 atm. What is that noble gas? Hint: Determine molar mass of the gas and compare with the molar mass given in the periodic table for the various noble gas elements. Xe Оне 0 Ne O Ar
plz answer all questions all questions correctly in pen in the esamination booklet (10 pts cack) Hs pressure are present in a sample which occupies 450 ml at 32C, 720 mm 2) W hat is molar the molar mass ofagas with a density of 6.29 g/L at 1 atm, 25°C mixture of 14.2 g He and 36.7 g Ar, is placed in a 100 mL container at 290 a) what is the total pressure of the system? b) what is...
5.(16 pts, 8min) Do either (a) or (b) (a) A sample of Ar(g) having a mass of 0.0166 g is collected over water. If the temperature and total pressure of the system are 48.0°C and 676 mmHg respectively, what is the volume of the gas expressed in liters? Data: is 83.71 mmHg. R= 0.0821 L atm/(K mol), 1 atm 760 mmHg Atomic mass of Ar-39.95 and the vapor pressure of water at 48.0°C (b) Consider the following reaction: 2 NAOH(aq)+2...