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Assume the equilibrium constant for the reaction of a particular alcohol with a carboxylic acid is 4.3. What is the calculated yield of the ester?
A 45 kg person drinks 530. g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 15% of the energy in milk is converted to mechanical work, how high (in meters) can the person climb based on this energy intake?
an iron nail weighing 5.10 g is allowed to react with oxygen according to the reaction below.4fe 3o2 rarr 2fe2o3a
Calculate the mass of I2 produced at the anode if a current of 2.85 A is passed through a solution of KI for 56 minutes.
A 4.50 g sample of NaOH at 25°C dissolves in 75.0 mL of water also at 25.0°C. The final equilibrium temperature of the mixture is 40.5°C. What is the enthalpy of solution, ?Hs, of NaOH expressed in kilojoules per mole
explain what ( if anything) is wrong with the following student's statement: " our solution is red, so we should set the spectrophotometer to the red light range
the polar liquid will have the higher boiling point, since its molecules have dipole-dipole interactions. e. they will have similar boiling points, since the dispersion forces depend upon molar mass
Calculate the energy of a photon of electromagnetic radiation at each of the following frequencies with 4sigfig
Calculate the values of Avogadro's number and the Faraday assuming the charge in an electron is 1.602 x 10^-19 coulombs/electron. Also calculate the mass the magnesium anode have lost during the process
what is the balanced chemical reaction describing the decomposition of ammonium nitrate, and calculate the standard heat of reaction using the appropriate enthalpies of formation
Calculate the hydrogen ion concentration in a solution containing 7.89 g of strontium hydroxide in 600 mL of solution.
The annual production of zinc sulfide (ZnS) is 3.5 10^4 tons. Estimate the number of tons of SO2 produced by roasting it to extract zinc metal.
Calculate the mass of nitrogen dissolved at room temperature in an 92.0L home aquarium. Assume a total pressure of 1.0 atm and a mole fraction for nitrogen of 0.78.
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