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If 45.0mL of ethanol {(density = 0.789 g/mL) initially at 9.0 degrees C is mixed with 45.0mL of water (density} = 1.0g/mL) initially at 28.3 degrees C in an insulated beaker, and assuming that no heat is lost, what is the final temperature of the mixture?
What is the difference in electronegativity of CO, CS, SiO, SiS, SO, and NO and rate these molecules in order if increasing dipole moment
an electric power station annually burns 3.3 107 kg of coal containing 1.4 percent sulfur by mass. calculate the volume
Draw the skeletal structure of 1-isopropyl-3-methylcycloheptane. Please explain, I am having trouble grasping this concept.
at a particular temperature and a0 2.57 10-3 m concentration versus time data were collected for this reaction and a
The half-lives of different radioisotopes are given in the table below. If the initial amount of indium-117 is 8.4 g, how much indium-117 is left in the body after 86 minutes?
During this process, 346 J of work was done by the system and its internal energy increased by 6275 J. What is the specific heat of the gas
The Haber-Bosch process is a very important industrial process. In the Haber-Bosch process, hydrogen gas reacts with nitrogen gas to produce ammonia according to the equation 3H2+N2=2NH3
A student prepares cyclohexene from cyclohexanol, but forgets to do the extractions. As a result the product contains some cyclohexanol. What peaks would you expect to see in the IR spectrum of this impure product?
Suppose that an 90.0 g laboratory animal ingested 10.0 mg of a substance that contained 2.55% by mass Pu-239, an alpha emitter with a half-life of 24,110 years. a) What is the animal's initial radiation exposure in Curies?
What is the importance as well as the strucutre, function and location of the ribosome recycline
if a 50.0 liter container holds 45 moles of a gas at a temperature of 200 C what is the pressure inside the container
Calculate the average kinetic energies of the CH4 and N2 molecules at 286 K and 556 K?
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