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Hydrocarbons containing halogens are very useful molecules in synthetic chemistry. Use tabulated thermodynamic data as needed to calculate ?Hf° for the reaction product in the equation shown below if ?H° for the reaction is -72.25 kJ. C2H4(g) + HCl(g) ? C2H5Cl(g)
Steam at 3MPa and 300oC exits a boiler and goes into a high pressure turbine in which it is expanded to 300kPa. The steam is then sent back to the boiler (constant pressure heat exchanger) and reheated to 300oC.
NH3 is a weak base (Kb = 1.8 × 10-5) and so the salt NH4Cl acts as a weak acid. What is the pH of a solution that is 0.049 M in NH4Cl
Iron is obtained commercially by the reaction of hematite (Fe2O3) with carbon monoxide. How many grams of iron is produced when 25 mol of hematite reacts with 30 mol of carbon monoxide? with the balanced equation of Fe2O3 + 3CO = 2Fe + 3CO2
What are the molecular weights of ether and dimethylether? Are they isomers of each other or is each an isomer of something else? Why are there significant differences in their chemical and physical properties?
a hungry engineering student reaches for a favorite granola bar while working on a statics assignment if the granola bar contains 240 "calories"
Give three differences that might be noted between the titration curve for hydrochloric acid and a titration curve for a weak unknown acid?
Complete and balance the molecular equation and write a net ionic equation, make sure to include the physical states of the compounds: 1. potassium carbonate + strontium nitrate
Consider radiation of wavelength of 4000 Angestroms, at a temprature of 3000 K. using a rayleighs- jeans law, calculate the energy per unit volume per energy wavelength?
A baseball weighs 220 g. Top speed for a professional pitcher is about 100 mph when he throws a fast ball. Find the de Broglie wavelength (in nm) associated
Ozone molecules in the stratosphere absorb much of the harmful radiation from the sun. How many ozone molecules are present in 1.00 L of air under the stratospheric ozone conditions of 227 K temperature and 1.89 * 10^-3 atm pressure
Identify the reagents for all three steps. Draw the structures of organic compounds A and B.
how many grams of Lithopone will be produced in the reaction of 315 mL of 0.275 M ZnSO4 and 285 mL of 0.315 M BaS.
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