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Two students prepare two cyclohexane solutions having the same freezing point. Student 1 uses 26.6 g of cyclohexane solvent, and student 2 uses 24.1 g of cyclohexane solvent. Which student has the greater number of moles of solute? Show calculations.
Analysis of an unknown substance showed that it has a moderate melting point and is a good conductor of heat and electricity in the solid phase. Which of the following substance would have those characteristics
At 0.0oC, if the volume of air is 3.1 mL and the pressure of the atmosphere that day is 815 mmHg, what is the number of moles of air?
A radio station's channel, such as 100.7 FM or 92.3 FM, is actually its frequency in megahertz (MHz), where 1MHz=10^6 Hz. Calculate the broadcast wavelength of the radio station 99.10 FM.
Suppose you have just added 200.0 ml of a solution containing 0.5000 moles of acetic acid per liter to 100.0 ml of 0.5000 M NaOH. What is the final pH? The Ka of acetic acid is 1.77 x 10^-5
Calculate the electrical work done buy a dry cell in 1.00 H if it produces a steady current of 0.70 A at 1.5 V. Answer expressed in jeules.
Use the Simple Huckel Molecular Orbital (SHMO) program to calculate which Pi system is more stable, anthracene or phenathrene.
Explain how the creation of coal, graphite, diamond and - buckminsterfullerene permits the required bonds to form. If you could answer in 100 - 150 words paragraph, I would highly appreciate it. If you could include references. Thanks.
What kind of compound is 2,3-dihydroxypentane? From what precursor do you synthesize the kind of compound that 2,3-dihydroxypentane is?
Given that Delta H (fusion) of water is 6025 J/mol, Cp(ice) = 37.7 J/K mol, and Cp(water,liquid) = 75.3 J/K mol, calculate Delta G (in J) for the freezing of 54 moles of water at 1 atm pressure and the constant temperature T =13.1 C.
in a titration, 33.21 ml 0.3020 M RbOH solution is required to exactly neutralize 20.00 ml hydrofluoric acid solution. what is the molarity of the hydrofluoric acid solution.
When red blood cells migrate away from the lungs, initial oxygen dissociation from hemoglobin is stimulated by and further on, dissociation is enhanced by
Calculate the final temperature of a mixture of 170.0 g of ice initially at -16.5 degrees celsius and 334.5 g of water initially
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