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Why are H2 and Br2 composed of nonpolar molecules and HBr is composed of polar molecules?
Explain how the enzyme recognizes the correct amino acid side chain located next to the peptide bond to be cleaved
The conversion of cyclopropane, an anesthetic, to propylene has a rate constant k - 1.3x10?6 s?1 at 400°C and k = 1.1x10?5 s?1 at 430°C. a) What is the activation energy in kJ mol?1
Under conditions for which chlorine gas has an effusion rate of 2.4x10^-6 mol sec^-1, what would be the effusion rate for bromine gas, in mol/sec
A standard method for the determination of glucose in serum is reported to have a standard deviation of 0.40 mg/dL. If s = 0.40 is a good approximation of lower case sigma
Calculate the values of E for the cell when the following volumes of the Cu titrant have been added: (Activity coefficients may be ignored as they tend to cancel when calculating concentration ratios.
Draw a reaction coordinate diagram for a one-step, exothermic reaction in which the the thermodynamic product is not the kinetic product (that is, the most stable product is the slowest to form).
Dibutyl ether and 1 -butene can be formed as by products in this reaction. explain how they are removed by sulfuric acid.
a 10.1 g sample of cacl2 is dissolved in 119 g of water with both substances at 25.0degc. calculate the final
A compound containing carbon as well as hydrogen contains 4.75 g of carbon and 0.80 g of hydrogen. The molar mass of the compound is about 28 g/mol. Explain what is (a) the empirical formula of the compound as well as (b) the molecular formula of ..
What is the minimum volume of 2.85 mol/L HCl(aq) required to dissolve 12.1 g Zn metal? The atomic weight of Zn is 65.39 g/mol. The unbalanced chemical equation for the reaction is Zn(s) + HCl(aq) --> ZnCl2(aq) + H2(g)
The lab is synthesis of Methyl Red. The question is starting with the appropriate aromatic amine and using any other organic or inorganic reagent, outline a synthetic sequence for the preparation of Chrysoidine, Para red and Congo red
How many grams of amonnia are needed to react with 50.0 grams of potassium tetrachloroplatinate then calculate how many grams of cisplatin are formed from 50.0gm of potassium tetrachloroplatinate, if percent yield for the reaction is 75%.
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