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During a Heck reaction Palladium, from palladium acetate, undergoes a change in oxidation state. Define what is being oxided and reduced through mechanism?
Which of the following compounds would you expect to be ionic?
The human body obtains 1078 kJ from a candy bar. If this energy were used to vaporize water at 100°C, how much water in liters could be vaporized
You dilute 1g of the soap 1:106 and plate it on standard plate count agar. After 24 hours of incubation, there are 168 colonies. How many bacteria were on the soap? How did they get there?
A red laser pointer emits light with a wavelength of 660. What is the frequency of this light? 2.What is the energy of one of these photons?
A 6.50 x 10^-5 M solution of potassium permanganate has a percent transmittance of 27.3% when measured in a 1.15-cm cell at a wavelength of 525 nm.
Determine the pH of a 0.075 M aqueous solution of magnesium fluoride. For hydrofluoris acid the Ka is 7.0 x 10^-2.
What exactly are myosin, actin, troponin and tropomyosin chemically?, What molecule releases energy when its bonds are broken. Which bonds are broken to release that energy?
calculate the molarity of an aqueous NaOH solution if 32 mL of it is required to titrate .6789 grams of oxalic acid to a phenolphthalein end point.
how do you do the lewis dot structure for NBr3 and H2O? we have to do it on Marvin sketch if any of you are familiar with it. thanks so much
Where would we predict benzene to absorb if we treated the pi-electrons as particles on a ring (radius 1.39 A)? What is the % error? I'll give you a hint.
How does the collision theory account for the dependence of rate on the concentrations of the reactants?
A 380. mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 630. mmHg. Calculate the moles of Ar present.
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