A sample of ethanol, C2H6O, has a mass of 58.50 g. Calculate the number of ethanol molecules in the sample.
A sample of ethanol, C2H6O, has a mass of 58.50 g. Calculate the number of ethanol...
A sample of ethanol, C2H6O, has a mass of 26.50g. Calculate the number of ethanol molecules in the sample.
A certain alcoholic beverage contains only ethanol (C2H6O) and water. When a sample of this beverage undergoes combustion, the ethanol burns but the water simply evaporates and is collected along with the water produced by combustion. a. A 9.8959 g sample of this beverage is cured for elemental analysis in excess oxygen and 2.1104 g of CO2 is collected. How many moles of ethanol, C2H6O are in this sample? b. What is the % volume of ethanol for this beverage.
Ethanol (C2H6O) is used as an additive in gasoline . Calculate the molality of an ethanol solution prepared by dissolving 78.6 g of ethanol in enough water to produce 225 g of solution . Select one: A. 11.67 m B. 7.59 m C. 349.33 m D. 0.349 m E. 0.537 m
When 1775 J1775 J of heat energy is added to 49.9 g49.9 g of ethanol, C2H6O,C2H6O, the temperature increases by 14.5 ∘C.14.5 ∘C. Calculate the molar heat capacity of C2H6O.
A sample of hydrogen sulfide, H2S, has a mass of 98.50 g. Calculate the number of hydrogen sulfide molecules in the sample. molecules
Calculate energy in joules and calories, when 15.0g of ethanol is lost, C2H6O,cools from 60.5 to 42.0 ,Ethanol has 0.588cal/g degree Celsius and 2.46j/g degree Celsius
When 1.730×103 J of heat energy is added to 46.4 g of ethanol, C2H6O, the temperature increases by 15.2 ∘C. Calculate the molar heat capacity of C2H6O.
If a driver provides 3.07 g of ethanol (C2H6O) into the Breathalyzer, what is the concentration of acetic acid (C2H4O2) if we assume the final volume is 100. mL?
9) An ethanol-water solution is 40.00% ethanol by mass and has a density of 0.9450 (g/cms) at 25.00°C. The density of pure ethanol is 0.7850 (g/cms) and the density of pure water is 0.9970(g/cms) at this temperature. At these conditions, the partial molar volume of ethanol is 55.00 (cmx/mol) and the partial molar volume of water is 17.5 (cm3/mol). a. Calculate the total volume of a 1000.0 g solution assuming both ideal and non-ideal conditions. b. What does the difference...
Given the following information. Determine the freezing points of a solution which contains 76.5 g of a sodium carbonate (Na2CO3) in 500.0 g of ethanol (C2H6O). Kf for ethanol 1.99 °C / m Normal freezing point for ethanol -114.6 °C