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A block of copper, mass at 500 grams and initially at T = 293 K is in thermal contact with an electric heater at a resistance 1.00 kiloOhms and negligible mass. A current of 1.00 A is passed for 15.0 seconds. How do you calculate the change in entropy of the copper, "taking the heat capacity at constant temperature = 24.4 J/K*mol"?
CCl4 dipole-dipole dispersion ion-dipole ion-ion (b) CsBr dipole-dipole dispersion ion-dipole ion-ion (c) BaCl2 dipole-dipole dispersion ion-dipole ion-ion
Calculate the de Broglie wavelength of the bullet traveling at 1289 miles per hour. Physical constants can be found here.
The water-gas shift reaction is important in hydrogen gas production. The balanced reaction shown below has a Kp of 9.48 at 700K. If 1.5 atm of H20 are placed in a container and heated to 700K, how much hydrogen gas
0.90 of hydrogen chloride () is dissolved in water to make 5.5 of solution. What is the of the resulting hydrochloric acid solution?
Barbituric acid (ka = 1.1x10^-4) is used in the manufacture of some sedatives. For a 0.6733 M solution of barbituric acid, calculate
acetaminophen is a weaker acid than carbonic acid h2co3 but aspirin is a stronger acid than carbonic acid. prepare flow
How many grams of methane must be combusted to heat 1.15 of water from 26.0 to 87.0, assuming as a product and 100% efficiency in heat transfer?
Calculate the standard entropy change for the following reaction at 25 °C. Mg(OH)2(s) + 2HCL(g) --> MgCl2(s) + 2H20(g)
The corresponding densities of liquid water and water vapor are 0.958 kg/L and 0.000598 kg/L, respectively. Calculate the change of pressure for a one degree change in temperature.
the density of a liquid sulfur compound is 1.14 gml1. this compound contains 23.7 sulfur. how many milliliters of the
Rolls of aluminum foil are 300mm wide and 0.013mm thick. What maximum length of aluminum foil can be made from 0.87kg of aluminum?
Carbon dioxide makes up approximately 0.04% of the Earth's atmosphere. If you collect a 2.0L sample from the atmosphere at sea level (1.00 atm) on a warm day
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