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The difference in aqueous nucleophilicity between Cl- and Br- is observed in the product distribution for the SN2 reaction of 1-butanol (n-butanol alcohol) but not for the SN1 reaction of 2-methyl-2-propanol (tert-butyl alcohol). Briefly explain this in terms of the SN rate laws.
What three events occur during the light reactions of photosynthesis. A. Reduction of oxygen, oxidation of NADPH, formation of ATP B. Oxidation of water, reduction of NADP+
pKa of a carboxylic acid group found on a molecule of DOM is 4.2 and pKa of An amino group found on a molecule of DOM is 9.3. Explain how pH influences the ability of these groups to bind to metals. Illustrate how well each of these groups would b..
An element forms a body-centered cubic crystalline substance. the edge length of the unit cell is 287pm and the density of the crystal is 97.92 g/mL. calculate the molar mass of the substance.
Assuming 100% dissociation, calculate the freezing point and boiling point of 3.27 m AgNO3(aq). Constants may be found here.
A sample containing 4.80 g of gas has a volume of 15.0 L. Pressure and temperature remain constant. What is the new voume if 0.500 mole gas is added?
Which of the available reagent(s), if any, will oxidize Fe(s) while leaving Cu(s) unreacted? If none of the available reagents can be used for this purpose, then identify another reagent from the table that could be used. For each reagent you've i..
A 303- sample of unknown solution reacts completely with to form 14.1 . What was the concentration of the solution?
What mass of NO2 can be produced by the complete reaction of 45.00 g of ammonia with 94.00 g of oxygen
What is the pH at the half-stoichiometric point (that is, what is the pH when you have added 50% of the total volume of base required to react with all of the acid originally present?)
You have a solution of NaCl dissolved in water. Describle a method by which these two compounds could be separated.
In each of the following pairs which compound would you expect to have the higher standard molar entropy and WHY
Describe the preparation of 0.250 L of 50.0 mM lactate buffer, pH 4.5 using a 0.5 M solution of lactic acid and 0.5 M solution of sodium lactate. pka=3.9
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