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What type of orgainc compound is responsible for the fruity flavorings found in many natural substances?
a. cyclo-alkanes
b. alkanes
c. aldehydes
d. ketones
e. esters
Calculate the wavelength of the photon emitted when the hydrogen atom undergoes a transition from n = 5 to n = 3. (R = 1.096776 × 107 m-1).
determine the binding energy of an F-19 nucleus. the F-19 nucleus has a mass of 18.99849325 amu. a proton has a mass of 1.00728 amu and neutron has a mass of
Why is acceptable to use a mixture of the alpha and beta anomers of D-(+)-mannose in this reaction? (i.e. why isn't it necessary to use either a pure alpha or the pure beta anomer? 2. What is the role of ferric chloride?
Consider an area-source box model for air pollution above a peninsula of land. the length of the box is 15 km, its width is 80 km, and a radiation inversion restricts mixing to 15 m.
Electron Donor and Receptor in Metal Complexes, In the first step of the catalytic cycle, the alkene bonds to palladium to make a new metal complex The alkene is now a ligand because the pi-bond of the alkene is donating some of its electrons to p..
Find the vapor pressure of a solution that contains 218 g glucose in 460.0 mL of water at 30 degrees Celcius.
Pure colored substances mostly exhibit a single peak (i.e. max) in the visible; therefore the simple rules of complementary colors apply. Mixtures are a little more complicated.
For estimating ozon in the air, a certain volume of air is passed through an acidified or neutral KI solution when oxygen is evovled and iodide is oxidized to give iodine
if you have 430.00 ml of water at 25.00 degrees celcius.and add 100 ml of water at 95.00 degrees celcius, what is the final temperature of the mixture?
What is the concentration of the solution as a mass percentage?
What mass of rm NaOH is needed to precipitate the rm Cd^{2+} ions from 35.0 mL of 0.540 M rm Cd(NO_3)_2 solution?
Rhodium has a density of 12.45 g/cm3. This metal crystallizes in a face-centered cubic unit cell. Calculate the diameter of a rhodium atom?
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