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A system conducts 238 cal of heat to the surroundings while delivering 331 cal of work. what is the change in internal energy of the system (in cal)?
determine how many grams of CaH 2 are required to generate 145 Litres of hydrogen gas if the pressure of hydrogen is 825 mm Hg at temperature of twenty one degree Celsius? .
What is the amount of energy packaged in a photon with a wavelength of 310 nm. Calculate the frequency of EM radiation with a wavelength of 1.2 x 10-7 m
what is the molecular geometry around each central atom: CH2CH2(double bond) C=? C=? Also, for CH3 O CH3 C-O-C C=? O=? C=.
Understanding the basics of thermal chemistry and The Second Law of Thermodynamics indicates that a system
Compute the expected change in temperature for 1.7 grams of ammonium nitrate NH 4 NO 3 dissolved in 50.0 mili litres of water H 2 O.
In a manometer the mercury level at the open end of the tube is 215 mm higher than at the closed end of the tube. If the atmospheric pressure is 1 atm.
CH4 + 4Cl2 --> CCl4 + 4HCl Using the above reaction, how many moles of HCl can be produced from 1.5 moles of CH4.
Anton Von L. a 17th century pioneer in the use of the microscope, described the microrganisms he saw as "animalcules" whose length was "25 thousandths of an inch."
Medical technicians use deoxyglucose labeled with fluorine-18 to locate tumors using a pet scan. A medical technician injects a patient with a therapeutic dose of fluorine-18.
The _______ of a titration occurs when the indicator changes color.
Determine the enthalpy for the given reaction as CS2
Determine what would be the total ?nal pressure of the system in atmospheres If we completely hydrolyzed 0.18 kg of H2O in a 8.2 L container at 300 K?
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