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Based on the data gathered in the Rutherford's scattering experiments, the concept of atomic structure was modified. Which of the following aspects of the structure of the atom were validated by these experiments?
1. The charge on a proton
2. The nuclear density being large
3. Most of the atomic volume being empty space
4. The existence of the atomic nucleus
5. The charge on the nucleus being positive
a student had to prepare 250 ml of a silver nitrate solution of known molality. unfortunately the container did not fit
Write the set of 4 quantum numbers for the following: a. The 29th electron of Ga b. The 55th electron of Cs c. The last electron of Pb i will rate these later when I finish looking through the responses
What would you use to prepare a buffer system with a pH of around 4.2. What would you use to make a buffer with a pH of around 9.2? Describe the process you used to choose the correct buffer for each pH.
Using the Rydberg equation calculate to four sig figs the energy of electromagnetic radiation necessary for ionization
The element magnesium has 3 isotopes with the masses and natural abundances shown in the table. Mass of Isotope Natural abundance 23.98504 78.99 24.98584 10.00 25.98259 11.01 What is the average atomic mass of magnesium
Draw the structure of tristearin, a fat in which all the fatty acid units are stearic acid. Circle and identify all functional groups.
Bromocresol green, Ka = 2.0x10^-5, is yellow in its protonated form (HX) and blue in its ionized form (X^-). At what pH will bromocresol green be a perfect green color
What would happen to the levels of mevalonate in human plasma if an individual were to go from a meat containing diet to a vegetarian diet
One way to approach the problem is to imagine the reaction proceeds to equilibrium by first going 100% to completion and then backing up a little
Many scientists and business professionals describe the achievement as a turning point. Provide a summary of what took place during the project and why such activity is significant for us today.
A 5.00g sample of liquid water at 25.0 degrees Celcius is heated by the addition of 84.0 J of energy. The final temperature of the water is _________ degrees Celcius. The specific heat capacity of liquid water is 4.18 J/g-K
Calculate the mean displacement of the harmonic oscillator when it is in a quantum state ?. Use the Hermite polynomials in the attachment and the recursion relation to justify your answer through symmetry arguments.
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