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a 192 piece of copper is heated to 100.0 degrees celsius in a boiling water bath and then dropped into a beaker containing 750.0 ml of water (density = 1.00g/cm cubed) at 4.0 degrees celsius. What is the final temperature of the copper and water after they come to thermal equilibrium? (the specific heat of copper is 0.385 J/gxK).
Calculate the pH after 0.020 mol of NaOH is added to 1.00 L of a solution consisting of 0.100 M HONH2 and 0.100 M HONH3Cl
The specific heat of liquid water is 4.184 J/g. degree C. Calculate the energy required to heat 10.0 g of water from 26.5 degree C to 83.7 degree C.
Three common hydrocarbons that contain four carbons are listed here, along with their standard enthalpies of formation: Calculate the molar enthalpy of combustion to CO2(g) and H20(l)
From the values of ?H and ?S, predict which of the following reactions would be spontaneous at 25 degrees celsius. Reaction A: ?H = 10.5 kj/mol, ?S = 30.0 J/K*mol Reaction B: ?H = 1.8 kj/mol, ?S = -113 J/K*mol
How long would it take for 1.50mol of water at 100.0 °C to be converted completely into steam if heat were added at a constant rate of 21.0 J/s?
Include activity coefficients in your solubility-product expression. The Ksp of Hg2I2 is 4.6× 10-29.
Find the volume of hydrogen evolved when 3.25g of zinc granules react completely with excess hydrochloric acid solution (Zn=65)
The bonding in benzene differs from that of other unsaturated hydrocarbons in that each carbon atom participates in: a. one single bond and on delocalized bond
The valve between the 2.00L bulb, in which the gas pressure is 1.00 atm, and the 3.00L bulb, in which the gas pressure is 1.50 atm, is opened. What is the final pressure in the two bulbs, the temperature remaining constant
Glacial acetic acid is 99.5% acetic acid (f.w. 60.052) by weight and has a density of 1.05g/mL. Calculate the volume of glacial acetic acid needed to make 1L of the buffer.
Detremine the concentration of chromate solution - Potassium chromate has an absorbance value
compute the mass of air in an air-filled tire and the also determine the mass of he in a helium-filled tire. suppose
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