Ili 00 Freon-12 (CF,Cl), widely used as a refrigerant and aerosol propellant, is a dangerous air pollutant. In the troposphere, it traps heat 25 times as effectively as CO2, and in the stratosphere, it participates in the breakdown of ozone. Freon-12 is prepared industrially by reaction of gaseous carbon tetrachloride with hy drogen fluoride. Hydrogen chloride gas also forms. How many grams of carbon tetrachloride are required for the production of 52.6 dm of Freon-12 at 26°C and 1.38 atm? g CCl, %24 6) (NO n

To the nearest 0.1 g, how many grams of a candle wax from a different brand of candle can be burned in 5-gallon container sealed with air?  Assumptions (may or may not be needed): Complete combustion to CO2 and H2O; Candle wax reacts in a ratio of 1 mol wax: 40 moles O2; MW (wax) = 370 g/mol, Air = 21% oxygen, R= 0.082 L.atm.K-1.mol-1, 1 gallon = 3.785 L, T=278 K, P = 1 atm

The gravitational force exerted by an object is given by F=mg,where F is the force in newtons, mis the mass in kilo-grams, and gis the acceleration due to gravity (9.81 m/s²).(a) Use the definition of the pascal to calculate the mass (in kg)of the atmosphere above 1 m² of ocean.(b) Osmium (Z=76) is a transition metal in Group 8B(8) andhas the highest density of any element (22.6 g/mL). If an os-mium column is 1 m² in area, how high must it be for its pressureto equal atmospheric pressure?

(Record your answer with rounded answer to proper significant digits and the proper units.) 1.How many moles of butane (C4H10(g)) were combusted in the presence of excess oxygen gas if 55.8 L of water vapour at STP is collected?Hint: Write a balanced chemical reaction equation first. 2.One of the steps to sweeten sour gas using the Claus process is reacting hydrogen sulfide gas with sulfur dioxide gas to produce water vapour and sulfur. 16H2S(g)+8SO2(g)----->16H2O(g)+3S8(s)  8.75 kL of hydrogen sulfide at 175 kPa and 250 °C reacts with excess sulfur dioxide. Calculate the mass, in kg, of sulfur produced.