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What product or products would you expect to obtain by the addition of bromine to cis-cinnamic acid, assuming that it reacts by the same mechanism as the trans acid?
At what pH would the side chain of histidine exist predominately in a form that could be involved in an ionic bond?
Which of the following are ways that catalysts can speed up reactions rates? You must check all answers that apply. A) Speedup the reaction without changing k. B) Decrease the energy of activation. C) Change the path of the reaction.
how many grams of water can be cooled from 33 to 20 by the evaporation of 37 of water? the heat of vaporization of
Given 100 g of hot tea at 90 C what mass of ice at -10 C must be added in order to obtain a final temperture of 10 C
a sample containing 1.50 moles of neon gas has a volume of 8.00 liters. what is the new volume if 25.0g of neon is added.
Find q of a reaction. A cup calorimeter contains 50.0 mL of 0.500 M NaOH at 25C. Then 25.0 mL of .500 M HCl at 25 C is added. After reaction, the final temperature = 27.21 C. What is q in KJ. Given C=4.184 J/gK
Gas Nitrous Oxide (N20) is used as an anesthetic and in aerosol cans to produce whipping cream. It is a potent greenhouse gas and decomposes slowly to N2 and O2.
Calculate the value of E°cell for a voltaic cell described in each of the following. Enter your answer with 3 significant digits. Enter scientific notation as 1.23E4.
Why did the grape juice change color when an acid or base was added. 5. You added a base, sodium bicarbonate, to test tube 1 that contained citric acid and an acid to test tube 2 that contained base.
Add 1mg of alcohol dehydrogenase. Assuming all of the ethanol is converted to acetaldehyde, what will the final concentration of NADH be in the solution
Calculate the volume in liters of a 8.75x10^-5 M silver (II) oxide solution that contains 200.g of silver (II) oxide
Suppose 317 mL of 4.14 M HCIO4 Solution is added to enough water to make a total of 7.70 L. What is the molarity of HCIO4 in this new solution?
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