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An unknown compound contains only carbon, hydrogen, and oxygen. Combustion analysis of the compound gives mass percents of 31.57% C and 5.30% H. The molar mass is determined by measuring the freezing point depression of an aqueous solution. A freezing point of -5.20°C is recorded for a solution made by dissolving 10.56 g of the compound in 25.0 g water. Determine the empirical formula, molar mass, and molecular formula of the compound. Assume that the compound is a nonelectrolyte. (Type your answer using the format CO2 for CO2.)
Titanium (III) chloride, a substance used in catalysts for preparing polyethylene, is made by high-temperature reaction of vapor with 2TiCl4+H2=2TiCl3+2HCl: How many grams of are needed for complete reaction with 150 of at 450 and 785 pressure
Compute the vapor pressure at the temperature of 25 degree Celsius of H 2 O above a solution formed by mixing 100.
Garlic smell is easily noticable due to the compound that is responsible for this is Allicin , when we analysed this compaound and find out molecular formula of molar mass= 486 grams
What is the concentration of a solution (in M) which contains 59.3 g of sucrose (C12H22O11) in 673 mL of solution
An aqueous solution contains 0.96 g/L of an organic detergent. The osmotic pressure of this solution is 62.2 torr, at 25°C. What is the molar mass (in g/mol) of this detergent
Which of the following combiantions of terms best describe the polymerization of a diisocyanate (OCN-R-NCO) and a diol to form a polyurethane
What molar ratio of benzoate ion to benzoic acid would be required to prepare a buffer with a pH of 5.20? [Ka(C6H5COOH) = 6.5 * 10-5]
What is the final temperature after 336J of heat energy is removed from 25.0g of Water at 19.6C
Suppose you want to heat air in your house with methane (CH4). Assume your house has 275 m2 of floor area and that ceiling is 2.50 m from the floor.
A diver at a depth of 100 ft (pressure approximately 3 atm) exhales a small bubble of air with a volume equal to 100 mL. What will be the volume of the bubble (assume the same amount of air) at the surface?
Calculate the volume of a 0.200 M NaOH solution needed to neutralize 40.0 mL of 0.600 M HNO3 solution.
For a particular redox reaction Cr is oxidized to CrO42- and Fe3 is reduced to Fe2 . Complete and balance the equation for this reaction in basic solution. Phases are optional.
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