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DSC analysis of a polystyrene sample illustrated no peaks in the temperature interval studied. The DSC thermogram showed an inflection in both the heating along with cooling parts of the cycle which were mirror images of each other. Are there any phase transitions practical and if so what order are they?
Use the tabulated data below to calculate x, s, and % RSD using your hand held calculator. Show all of your calculations for full credit.
Define what is the minimum frequency of light necessary to emit electrons from sodium via the photoelectric effect
DRAW a flow chart to show how triphenylmethanol is purified by extraction. Indicate which layer contains the product.
Calculate the rpoportion of I2 (iodine) molecules in their ground state, first excited stated
question 1based on their ground state electron configurations alone rank these molecule in order of bond length from
What is the vapor pressure (in mm Hg) of a solution of 10.5g of urea, CH4N2O, in 151.0g of water at 45.0 C? The vapor pressure of water
calculate change in gibbs free energy for the reaction cog 12o2g-co2g at 298.15 k. calculate change in gibbs free
Why do we avoid leaving glass electrodes immersed in solutions of bases for more then a brief time
Explain in general terms what a reference sample is and what its purpose is in spectrophotometry.
Determine the standard cell potential, Ecell, of a galvanic cell consisting of the Ag+ (1M)/Ag and the Cr3+ (1M)/Cr redox couples.
A 2.00 L sample of air at -50 degreees C has a pressure of 700 torr. What will be the new pressure in torr if the temp is raised to 50 degrees C and volume is increaed to 4.00 L
How would the results differ if you added sodium p-toluate instead of p-toluic acid to the two-layer mixture of tert-butyl methyl ether and water
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