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Calculate the standard enthalpy of formation of methane, CH4 (g), using a C-H bond enthaply of 413 kJ mol-1 and the atomization enthalpies of 716.682 and 217.96 kJ mol-1, respectively for C and H.
In the formation of dibenzalacetone, do you expect the configuration of the double bonds in this compound to be E,Z, or a mixture of both? WHY?
Chemicals in the body or out of the body that effect on rate of thermal regulation with detailes in simple way
How many pi bonds and sigma bonds does the chemical compound caffeine has, and where can one get some information on hybrid orbitals on aromatic compounds like benzene and caffeine
Compute the freezing point of a 1.9 molal aqueous glucose solution. The freezing point depression steady for water is 1.86 C / m.
The mass of the water in the inner bath is 1.40×103g . The temperature of the calorimeter and its contents rises 2.83K as a result of this reaction. Calculate the calorimeter constant.
A solution of HCl is found to be 0.5277 N and 39.65 mL of its equivalent to 20.65 of standard NaOH. a. What is the normality of NaOH
The specific heat of iron metal is 0.450 J/g-K. How many J of heat are necessary to raise the temperature of a 1.05-kg block of iron from 25.0 Celcius to 88.5 Celcius
2,3-dimethyl-2,3-butanediol upon heating in aqueous acid, rearranges to form 3,3-dimethyl-2-butanone. Suggest a mechanism for this
Equal volumes of the two solutions are mixed. Assuming the reaction is first order in each reactant, what is the initial rate at 32 degrees C?
A solution is initially 2.5 x 10-3 M in Cu+ and 2.5 x 10-3 in Pb 2+. Iodine ion is gradually added to the solution. Determine the concentrations of Cu+, Pb +2, and I- at the point of maximum separation. The solubility products of CuI and PbI2 are ..
Calculate the specific heat was? Would your computed specific heat be , too low, too high or not affected if you had not dried the metal before placing it into the Styrofoam cup. Explain your answer?
When 12.0 mL of a 2.89E-4 M barium acetate solution is combined with 18.0 mL of a 5.24E-4 M sodium carbonate solution does a precipitate form
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