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Consider two samples, 5 g of water and 5 g of ethanol, both at a 25 degrees C. If 200 J of heat is added to each sample, which sample will be at a higher temperature?
The label claims this solution is 3.0 % (w/w); that is there are 3.0 grams of H2O2 in every 100 grams of solution. What is the molar concentration of this solution. Assume a density of 1.00 g mL
The normal boiling point of methanol is 64.7°C. A solution containing a nonvolatile solute dissolved in methanol has a vapor pressure of 710.0 torr at 64.7°C. What is the mole fraction of methanol in this solution?
The reaction of pure (S)-2-chlorobutane with sodium cyanide in dimethylsulfoxide produces pure (R)-2-cyanobutane. Explain why a racemic mixture is not expected for this reaction if it occurs via an Sn2 mechanism.
What is the density (in g/L) of a mixture of equal numbers of moles of N2 and CO2 gas in a 8.00 L container at 298K if the pressure exerted is 19.0 atm
a gas mixture containing oxygen, nitrogen, and neon exerts a total pressure of 1.20 atm. If helium added to the mixture increases the pressure
If the total area of the clarifier is 25,000 m2 and the L/W = 5, what is the width of the clarifier? The molecular weight of orthophosphate (PO43-) is 95 g/mole and the concentration is 20 mg/L. What is the concentration in meq/L?
During the separation process students frequently examine that their sodium hydroxide solution is colored because of hydrolysis of small quantities of acetaminophen by sodium hydroxide to form 4-aminophenol
Calculate the entropy change when neon, at 50 celsius and 1.00 atm pressure in a container of volume 0.500 dm^3 is allowed to expand to 1.00 dm^3 and simultaneously heated to 100 celsius
Draw a resonance structure, complete with all formal charges and lone (unshared) electron pairs, that shows the resonance interaction of the acetyl with the ortho position in acetophenone
Problem- Cyclopropane (C3H6) reacts to form propene (C3H6) in the gas phase. The reaction is first order in cylclopropane and has a rate constant of 5.87×10?4/s at 485 ?C.
Silver metal crystallizes in a cubic closest packed structure. The face centered cubic unit cell edge is 409 pm. Calculate the density of the silver metal.
Predict the order of polymer molecular weight obtainable (highest to lowest) by the free radical solution polymerization of styrene in benzene, toluene, ethylbenzene, i-propylbenzene, and t-butylbenzene
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