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What layer of skin causes dandruff? Is this the same layer that peels off after a sunburn? How do you know?
Wrinkles occur with age due to a loss of elasticity and collagen. Which layer of skin do you believe is most responsible? Do you think topical ointments that claim to firm skin really work? Explain why or why not?
Draw the 3-dimensional structural formula for ® 2 -iodopentane. Use the wedge and dashed line convention. Complete the table below based on whar you know about enantiomers.
(a) Draw a diagram of the electrochemical cell, labeling all electrodes and solutions. (b) What is the pH in the Pt | H+ | H2 half-cell? (c) What is the value of the equilibrium constant for the reaction occurring in this cell
Suppose that a radiologist who is 4.0 m from a small, unshielded source of radiation receives 3.4 units of radiation. To reduce the exposure to 0.34 units of radiation, to what distance from the source should the radiologist move?
Isopropyl Iodide can be used in acetoacetic esther synthesis in the presence of NaOET to form 4-methyl-2-pentanone. How does this occur? P.S. I tried to use the chem software to diagram this reaction but failed miserably :P
Question- A crystal lattice has copper at all the corner positions and nickel at all the edge positions in a unit cell. What is the formula of the unit cell
Write a reaction mechanism for the dehydration of 4,5-dimethyl-3-hexanol in concentrated phosphoric acid. Use curved arrows to show electron movement and clearly show the major product formed.
Why is the structure of FMN and Coenzyme Q important for the function of the electron transport chain
How many grams of sodium bicarbonate and sodium carbonate, respectively, are needed to make 3 liters of 0.075 M buffer, pH 10.500
Given that the atomic mass of carbon is given as 12.0107 g/mol, what are the approximate relative abundances of the two isotopes 12C and 13C?
A sample of gas inside a 150 mL piston has an initial temperature of 550 K and pressure of 8.0 atm. As the piston expands to 650 mL, the pressure decreases to 1.5 atm.
The temperature of a 22.0 g sample of material increases from 190.0 degree C to 42.0 degree C when it absorbs 5.00 kJ of energy as heat. What is the specific heat of this material?
What is the pH of a solution that is 0.20 M HC2H3O2 and 0.40 M NaC2H3O2? Ka for acetic acid 1.8 x 10-5. Explain
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