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Einstein's 1905 paper on the photoelectric effect was the first important application of Planck's quantum hypothesis. Describe Planck's original hypothesis, and explain how Einstein made use of it in his theory of the photoelectric effect.
ascorbic acid vitamin c is a diprotic acid of molecular weight176 gmol. a sample of a vitamin supplement was analyzed
Calculate the amount of heat liberated (in kJ) from 411 g of mercury when it cools from 79.0°C to 15.0°C.
You will be assigned a pigment color. Describe in detail how you plan to go about determining which pigment to make.
calculate the molar heat of combustion of liquid methanol . a. -8.17 x 105 kJ/mol b. -817 kJ/mol c. 1.88 kJ/mol d. -0.8 kJ/mol e. none of the above
most organic polymers are named based on the monomers used in their production. however polyvinyl alcohol pva is not
Starting with 2.70 x 10^22 atoms of Tl-206, calculate the number of such atoms left after 28.5 min.
Require to apply to neutralize the acidity that concluded from nitrification and determine how much CaCO 3
1 liter of sodium carbonate 0.4 M is added to 1 liter HCl 0.3 M what is the excess material and how many moles remains?
A 2.00g sample of a particular compound was dissolved in 15.0 g of carbon tetrachloride. The boiling point of this solution was determined to be 77.85 Celcuis.
The butylammonium ion, C4H9NH3^(+), has a Ka of 2.3x10^(-11) C4H9NH3^(+) + H2O > H3O^(+) + C4H9NH2 A. Calculate Kb for the conjugate base, C4H9NH2 B. What is the pH of a 0.015M solution of butylammonium chloride
Unfold the enzyme with urea and 2-mercaptoethanol. Then incubate and crystallize it in the presence of the substrate followed by X-ray crystallography.
Determine the number of unpaired electrons, magnetic moment and ligand field stabilization of [Co(CO)4]-
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