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A 100.0-g sample of copper is heated from 10.0°C to 100.0°C. a) Determine the number of calories needed. (The specific heat of copper is 0.0921 cal/goC).
The best design for rockets is one in which both fuel materials run out at the same time to minimize excess mass. If the total mass of both components in a decaborane/oxygen rocket must be 1.951E+6g, what mass of liquid oxygen should be used
2,4,6-Trichlorophenol is considerably more acidic (pKa = 6) than phenol. Draw the resonance structures for the 2,4,6-trichlorophenoxide ion that explain why it is more acidic, and provide ONE sentence explaining the significance of these structures..
Compute the changes in the degree of polymerisation and the rate of the polymerisation caused by raising the temperature of polymerisation of styrene in C6H6, initiated by azobisisobutyronitrile from 60 0C to 70 0C.
How long would it take the same number of moles of Ar(g) to effuse through the same membrane?
which element has the greatest density at STP? and why?
Write the formulas of all possible monobromination products when cyclopentane is exposed to Br2 in presence of light, rection occurs.
Calculate the mass of carbon dioxide released when 255 g of copper carbonate [molar mass = 123.5 g/mol] is heated (assuming that the reaction goes to completion). The molar mass of CO2 is 44.0 g/mol.
Calculate the concentration of solution containing one mole of phophate per litre
At what pressure does the mean free path of argon at 25 C become comparable to the diameter of a spherical vessel of volume 1.0dm3 that contains it? ? =.36nm^2
h3po4 undergoes three ionization equilibria for each ionization pkasnbsp 2.12 7.21 and 12.3nbsp respectively. a
the combining of the fragments which remain after the loss of an oxygen from the carboxylic acid and two hydrogens from ammonia or an amine.
what is the velocity of a first-order reaction when the reactant concentration is 6 x 10-2 m and the rate constant is 8
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