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A certain first-order reaction has a rate constant, k, equal to 2.1 x 10-5 at 355 K. If the activation energy for this reaction is 135 kJ/mol compute the value of the rate constant (s-1) at 550 K.
if you wanted to prepare a solution of co in water at 25 in which the co concentration was 2.1 mm what pressure of co
How to improve yield for methyl-m-nitrobenzoate from nitration of methyl benzoate experiment
the electron shifts resulting in the ring closure. draw diagrams of the products.
The voltage across the leads of a glass pH-reference combination electrode immersed in a solution of pH 8.00 was 133 mV. Calculate the expected voltage if the pH of the solution is raised to 9.00
As a chemist for an agricultural products company, you have just developed a new herbicide,"Herbigon," that you think has the potential to kill weeds effectively. A sparingly soluble salt, Herbigon is dissolved in 1 Macetic acid for technical reas..
IF you want to prepare a solution that is .200 molal in NaNO3, how many grams of the salt would you add to 500 grams of water?
what is the titer of the iodine solution of the .1137 sample of pure ascorbic acid 26.75 ml i2 required to reach starch
(a) Write the reaction equation, (b) indicate which product is predominant at low temperature, (c) which product is predominant at high temperature, and (d) draw a reaction energy diagram explaining your answers in b and c.
A 10.00 mL aliquot of weak base is titrated with HCl. The equivalence point is reached after 17.21 mL of 0.4332 M HCl has been added. The pH is equal to 10.03 after 5.00 mL of HCl was added. Determine
Beryllium(II) forms a complex with acetylacetone (166.2g/mol). Calculate the ?molar absorptivity of the complex, given that a 1.34-ppm solution has a transmittance of 55.7% when measured in a 1.00-cm cell at 295 nm, the wavelength of maximum absor..
Glucose oxidation has a standard enthalpy of -2803 kJ/mol. What is the total heat produced by human respiration over the course of one year
One of the most common causes of inaccurate melting points is too rapid heating of the melting point apparatus near Tmelt. Under these circumstances, how will the observed melting point compare to the true melting point
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