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The vapour pressure of a substance at 20? is 58.0kPa and its enthalpy of vaporization is 32.7 kJmol-1. Estimate the temperature at which its vapour pressure is 66.0kPA
Treatment of either C or D with periodic acid yields the same dicarbonyl compound shown. Finally, treatment of A and B with methylmagnesium bromide followed by acidic workup yields two different compounds, E and F, which are also related by their ..
Three gases (8.00 of methane, , 18.0 of ethane, , and an unknown amount of propane, ) were added to the same 10.0- container. At 23.0 , the total pressure in the container is 4.40 . Calculate the partial pressure of each gas in the container.
If the symbol X represents a central atom, Y represents outer atoms, and Z represents lone pairs on the central atom, the structure. Classify these structures by the hybridization of the central atom.
Explain why does the addition of NO2+ to acidic solution of acetanilide require to be performed at a cold temperature. Define what would be the products if this wasn't kept at a cold temperature
Describe how you would make 2.35 g of a mixture of sand,clay and ash in the following percentages, respectively : 24.64%, 4.23%, and 71.13%
An unknown compound containing only carbon and hydrogen was burned in excess oxygen. When 8.937 grams of the compound was burned, 28.042 grams of carbon dioxide and 11.482 grams of water were produced. If the unknown compound has a formula mass of..
Spell out the whole name of the alkyl bromide that should be used in the malonic ester synthesis of each of the following carboxylic acids:
What is the internal energy change for the system if 969 joules of heat flows into the system from the surroundings and 253 joules of work is done by the system on the surroundings
The third ionization energy of Ru is less than the third ionization energy of Fe. Explain.
Which atom in each of the following pairs has a larger radius. (a) Na or K (b) V or Ta (c) V or Zn (d) Li or Ba
A chemist ran the reaction and obtained 5.05g of ethyl butyrate. What was the percent yield
What are the advantages and disadvantages of gas chromatography compared to other chromatographic techniques
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