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Solutions of chymotrypsin prepared for experimental purposes are stored in a dilute solution of hydrochloric acid as a "preservative." Explain.
Calculate the energy of a photon emitted an electron in a hydrogen atom undergoes a transition from n=3 to n=1
Calculate the molarity, Molarity of iron (III) chloride solution
After a fatty acid has been desaturated, can it be desaturated a second time immediately thereafter? Why, or why not?
Calculate the value of Ecell (Standard reduction potentials) for the reaction above. Shwo your work and explain why this value implies that the reaction is product favored.
formulate a complete mechanism for the thiamine-catalyzed conversion of benzaldehyde to benzoin
It is written in chemical shorthand as NaCl. How would you go about finding approximately how much salt there is in our body
Phenolphthalein is one of the most common indicators. What are its colors in acidic and in basic solutions?
When the electrons return to the ground state, they lose the excess energy in the form of 640 nm photons. What is the energy gap between the ground state and excited state in the laser material? answer is in J i was absent in class and my test is ..
An aqueous vinegar sample contains 5.4% acetic acid by mass and has a density of 1.006 g/mL. Calculate the amount of acetic acid in grams in 2.00 L of this vinegar. Report your answer using the correct number of signi?cant ?gures.
What are the pH, pOH, hydroxide ion concentration, and hydronium ion concentration of a 0.014-M diprotic acid solution?
What is the buffer solution? What characteristics make this solution a buffer solution?
Multiple choice questions in nuclear chemistry - which equation represents the balanced nuclear equation
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