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Suppose if the enthalpy of combustion for ethane = -2834 kJ, explain how much ethane, in grams, must be burned in order to heat 217.3 grams of water from 51°C to the boiling point as well as then boil all of it into the gas phase at 100°C. Define the enthalpy of vaporization of water = 40.8 kJ/mol as well as the specific heat of liquid water = 4.184 J/gK.
A mixture of copper(II) sulfate pentahydrate (249.70 g/mol) and magnesium sulfate heptahydrate (246.49 g/mol) is heated until all the water is lost. The weight of the initial mixture is 5.020 g, and the weight of the resulting anydrous compounds i..
What is the theoretical yield (in grams) of gold when 1.378 L of hydrogen gas (density = 0.0902 g/L) reacts with 20.14 g of gold(III) chloride in solution
How would you prepare 3-methylheptane from either, butane, 1-bromobutane, or 2-bromobutane?
using a solution containing 55.0 g of glycerol c3h5oh3 and 250 g of water? what will be the freezing point and boiling
in an experiment a student gently heated a hydrated copper compound to remove the water of hydration. the following
For each of the following pairs of ions, determine whether a precipitate would form when solutions containing these ions are mixed and write the formulas of any precipitates that should form. Indicate the color of any precipitate that should form.
Consider a container of volume 2.0 dm3 that is divided into two compartments of equal size. In the left compartment there is nitrogen at 1.0 atm and 25°C; in the right compartment there is oxygen at the same temperature and pressure
calculations of the sulfuric acid molarity if your average result from the titration of three 0.350 g samples is 15.72 mL. Please explain your answer in detail (words and calculations).
Determine the [H3O+] and pH of each of the following solutions at about room temperature. Be certain to show the chemistry behind each problem.
What kinds of compounds are suitable to be separated and analyzed by TLC. gases volatile liquids solids two of the above(which) all of the above
a 0.21 m3 drum contains 100 l of a mixture of several degreasing solvents in water. the concentration of
If the volume is increased to 71.2 L at constant temperature, how many collisions will occur per square inch of this larger container
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