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A mixture 0f 50wt% methane, 35wt% ethane, and 15wt% propane. Determine the mole fraction of methane, and what is the average molecular weight of the mixture?
Ethanol, C2H5OH, boils at 78.29°C. How much heat energy (in kilojoules) is necessary to heat 1.30 kg of this liquid from 19.0°C to the boiling point also then change the liquid totally to a vapor at that temperature. The specific heat of liquid et..
A molecule, whose formula is AB, dissolves in water and also conducts electricity. What one statement best describes this molecule after it's placed in water. A)AB exists as a molecule only.
1. calculate the ph of a buffer solution prepared by dissolving 0.20 mole of sodium cyanatenacno and 1.0 mole of cyanic
Utilizing Hess's Law to compute standard enthalpy change for decomposition of MgCl(s) to MgCl2(s) as well as Magnesium metal in Kj/mole Hf of MgCl2=-125kj and Hf of MgCl2(s)=-642 kj
Determine the amino acid sequence of a heptapeptide from the following data. Briefly explain the meaning of the results in each of the following treatments.
To calculate the box length, assume that the molecule is linear and use the values 135 and 154pm for C--C and C-C bonds. What is the wavelength of light required to induce a transition from the ground state to the first excited state.
A steam turbine receives a flow of 10,000 lb of steam per hour and delivers 500 kW in that period. Heat losses from the casing and the turbine bearings may be assumed neglible
100 moles of C4H10 undergoes complete combustion in excess air. First, show the degree of freedom analysis for this process. Then calculate the composition (mole fractions) of the stack gas on a wet basis for the following three cases: (1) theoret..
What happens to the temperature of a liquid as evaporation occurs. A. The temperature of the liquid increases. B. The temperature of the liquid remains the same. C. The temperature of the liquid decreases. D. Liquids cannot evaporate
Procedure General flow and logic Temperatures Times Solvents Techniques used to make the products At least one test (your choice) to verify your product the reaction of 2 methyl 2 octene with HBr reacting with heat and CH3Br
There is an inherent flaw in the drying procedure for the gravimetric determination that causes the measured mass of BaSO4 to be erroneously high
How many grams of sodium cyanide can be produced from 174 grams of calcium cyanide in the following reaction: calcium cyanide + sodium chloride --> calcium chloride + sodium cyanide
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