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State a mechanism for the dehydration of 4-methylcyclohexanol catalyzed by an acid? In the case utilize H3PO4 and a little bit of H2SO4 plus heat. The products are 4-methylcyclohexene + H20.
q. determine the mass in gms for pure ag sample that loses 2.88kj if its temperature drops from 143 degree celsius to
If the first solvent pair for recrystallization is ethanol-water, what would happen if hexane replaced ethanol, to make the solvent pair of hexane-water
in a laboratory, 6.82 g of Sr(NO3)2 is dissolved in enough water to form 0.500 L of solution. A0.100-L sample is 0.0245 M solution of Na2CrO4.
Benzoic acid, C6H5COOH, is sometimes used for the standardization of solutions of bases. A 1.722-g sample of benzoic acid reacts with 26.47 mL of a NaOH solution. What is the molarity of the base solution
In an SN1 reaction, what will happen to the rate of the reaction if the concentration of the nucleophile is increased by 100%. What if it is an SN2
A catalyst decreases the activation energy of a particular exothermic reaction by 59 kJ/mol, to 51 kJ/mol. Assuming that the mechanism has only one step, and that the products are 94 kJ lower in energy than the reactants
A solution contains 0.10 M Ca2+ and 0.10 M Mg2+. What pH range would result in only Mg(OH)2 precipitating? Ksp for Ca(OH)2 is 6.5 ´ 10-6 and for Mg(OH)2 is 7.1 ´ 10-12.
6.3 ml aliquot of 0.0529 m h2so4 aq is to be titrated with 0.0411 m naoh aq. what volume ml of naoh will it take to
Compute the change in temperature when 2 g of sodium chloride is dissolved in 270.0 mL of water initially at 25 C. The heat capacity of water is 4.184 J/mL/K. Neglect the heat capacity of the NaCl.
How many grams of dry NH4Cl need to be added to 2.00 L of a 0.600 M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.89?
What total volume of ozone measured at a pressure of 21.0 {\rm mmHg} and a temperature of 227 {\rm K} can be destroyed when all of the chlorine from 12.0 {\rm g} of {\rm{CF}}_3 {\rm{Cl}} goes through ten cycles of the above reactions
For a solution of 0.10M H3PO4, calculate the concentration of all the ionic species in solution (i.e., H+, OH-, H2PO4-, HPO42-, PO43-)
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