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Question- A pure gaseous hydrocarbon has a density of 0.103 lb/cu ft at 14.7 psia and 100 degrees F. Chemical analysis shows that there are two hyrogen atoms for each carbon atom in each molecule. What is the formula of this molecule? Assume that the hydrocarbon acts like an ideal gas.
State your answer by means of three significant figures.
Determine the atomic number and valence orbital that is filling for the element that would appear below radium in the periodic table.
During the synthesis of methyl 3-nitrobenzoate, when the reaction mixture is poured on ice, the product separates out as a solid. Why
How would (The weak base sample was impure, containing about 5% inert material) affect the values of Ka for the weak acid unknown and the values of the molar mass for the disodium salt
Which of the following is a use for nuclear energy?
When 5.00 g of fructose, C6H12O6, (FW 180.16 g/mol) is burned in a calorimeter whose heat capacity is 29.7 kJ/oK, the temperature increases by 2.635oK. Calculate the heat of combustion of fructose in kJ per mole.
Scientists can use mutants to study metabolic pathways. These organisms have a mutation in a gene encoding a metabolic pathway enzyme that results in the inactivation of that enzyme
What are the molality and mole fraction of solute in a 34.0 percent by mass aqueous solution of formic acid (CH3OH)?
When ethane (C2H6) reacts with chlorine (Cl2) the main product is C2H5Cl; but other products containing Cl (chlorine), such as C2H4Cl2, are also obtained in small quantities. The formation of these other products reduces the yield of C2H5Cl. In a ..
What is the difference between the virial equation of state and the SRK equation of state? When would you use one versus
A 28.6 g sample of ethylene glycol, a car radiator coolant, loses 700. J of heat. What was the initial temperature of ethylene glycol if the final temperature is 32.5°C (c of ethylene glycol = 2.42 J/gK)
12.35 NH4NO3 undergoes a transition from one solid modification to another at 125.5 Cat 1.0atm, and at 135.0 C at 1000atm pressure. The form stable at higher temperatures has an average volume of 0.0126 c/g greater than the other modification ov..
Consider two different solutions of the same UV-absorbing compound. Upon UV-analysis Solution B provided an absorbance of 1.5 and Solution A provided an absorbance of .5 at the same wavelength. Solution B is higher in concentration by what ratio (..
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