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Question: What is the difference between a gas tail and dust tail with a comet?
A solution is prepared my mixing 40 mL of pentane (C5H12, d = 0.63 g/mL) with 100 mL of hexane (C6H14, d = 0.66 g/mL). Assuming the volumes add upon mixing, Calculate-
Please provide a complete mechanism (using arrows and lone pairs) for the synthesis of 2-ethyl-2,4,5-trimethyl-1,3-dioxolane using 2-butanone and 2,3-butanediol in an acidic environment (H2SO4).
Fluorite, a mineral of calcium, is a compound of the metal with fluorine. Analysis shows that a 2.26 g sample of fluorite contains 1.50 g calcium. Calculate the following. (a) mass of fluorine in the sample
1.3 Kg of Ethane gas (C2H6 ) was heated from 27.0 degree Celsius to 78.0 degree Celsius. Calculate delta E at constant pressure. ( Cp= 52.92 j / K mol)
How many mL of 0.450 M NaOH are needed to titrate 25.0 mL solution of 0.250 M FeCl3 solution? FeCl3 aq + 3NaOH arrow to Fe(OH)3 aq +3NaCl aq
The pH of a 9.63×10-4 M solution of a weak base is 10.15. Calculate Kb for this base to three significant figures.
the given equation 3 c2h5oh 4 kmno4 --gt 3 ch3cooh 4 mno2 4 mno2 h2o describes the oxidation of ethanol c2h5oh to
Problem- Were the advertising claims of low alkalinity shampoo verified when compared with ordinary shampoo? Explain.
Calculate the Mn of the polyisobutene if A 7.5g polymer sample found to discolor 3.4 mL of a 0.05 M solution of Br in CCl4 ?
write the mechanism for the reaction of the elimination reaction of 2-iodo-11-dimethylcyclopentane with h2o and provide
The specific heat capacity of the solution produced was 4.20 J/g•°C, and final temperature reached was 34.91°C. How much heat was produced by the dissolution
In an electron microscope the electrons generate the image. For one of the scanning electron microscopes in our Central Analytical Facility, the electrons are accelerated to have a kinetic energy of 200,000 eV
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