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Write two equations for the dehydration of 2-methyl-2-butanol. One should show the structures of both alkenes, and the other one should be balanced.
The white solid that remains in the centrifuge tube after acetone extraction fizzes when hydrochloric acid is added, suggesting that sodium carbonate is present. How did this substance form? Give a
If [a = 2.84 (+/-) 0.02], [b = 5.02 (+/-) 0.04], [c = 21.71 (+/-) 0.06], and [d = 9.49 (+/-) 0.04], calculate the absolute uncertainty in y if y = (a+b)/(c-d).
what should be the thickness, in micrometers of the dielectric of an interference filter if it is to isolate radiation having a wave number of 2.8357 x 10^4 cm^-1 in first order. The index of refrac
Why is anhydrous sodium sulfate added to the organic solution remaining after the extractions with 6M NaOH
Given a metal which has a coefficient of volume expansion given by B(T) = 8.0x10^-6 K^-1 + (1.2x10^-8 K^-2)T caluclate the work done by this is obaric process
(a) Cl2(g) is added to the system. (b) The reaction mixture is heated. (c) The volume of the reaction vessel is doubled. (d) A catalyst is added to the reaction mixture. (e) The total pressure of th
A light bulb is placed 22.2 cm in front of a concave mirror. Calculate the focal length of the concave mirror
use an orbital interaction diagram to draw the molecular orbitals oh H2+. Do you predict that this molecule will be stable? Explain your logic.
The water solubilities of oxalic acid and sodium oxalate at room temp are 10g/100ml and 3.7g/100ml respectively. Could you prepare oxalic acid by adding HCl to a solution of sodium oxalate, cooling
Calculate the temperature of the system once equilibrium has been reached. Assume that for Cp,m H2O is constant at its values for 298K throughout the temperature range of interest.
A 13cm -diameter cylinder contains argon gas at 10 atm pressure and a temperature of 60?C. What is the final length of the cylinder
We use standard addition methods when our sample has matrix effects which are hard to duplicate in a blank. Let's again find the amount of Pb+2 in a blood sample. A 5.00 mL blood sample containing l
Unpolarized light passes through two polaroid sheets. What fraction of the initial light is transmitted
A microwave radio transmitter emits electromagnetic waves of a single wavelength. What is the power of the transmitter
An engine has an efficiency of 63% and produces 6461 J of work. Determine the rejected heat
A 0.49 kg mass at the end of a spring vibrates 9.0 times per second with an amplitude of 0.20 m. Determine the total energy of the system
The equation of a transverse wave traveling along a very long string is y = 6.5 sin (0.045 ?x + 6.0 ?t), Determine the amplitude of propagation of the wave
cancer patient is undergoing radiation therapy in which protons with an energy of 1.2 MeV are incident on a 0.10-kg tumor. How many protons are absorbed by the tumor
show that the energy eigenvaules for the free particle E=h2k2/2m are consistent with the classical result E=1/2mv2
If the molality of your solution is 0.30, calculate the contribution to the percentage error in your result due to not correction for the errors int he thermometer readings.
Find the energy released in the fusion reaction 2/1H+ 3/1H? 4/2He+n. The mass of 2/1H is 2.014102 u
The following arrangement of flasks is set up. Assuming no temperature change and no chemical reaction, determine the final pressure inside the system after all stopcocks are opened and equilibrium
At 25 °C, water has an equilibrium vapor pressure of 23.8 mm Hg. If 2.500 g of water is sealed in an evacuated 10.0-L flask and heated to 25 °C, what mass of water will evaporate?
What happens to some solute during crystallization when too much solvent is evaporated and what do you do