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A 460 g chunk of iron is removed from an oven and plunged into 370 g water in an insulated container. The temperature of the water increases from 25 degrees C to 86 degrees C
If the specific heat of iron is 0.449 , what must have been the original temperature of the iron?
The space shuttle orbiter utilizes the oxidation of methyl hydrazine by dinitrogen tetroxide for propulsion. 4 N2H3CH3(l) + 5 N2O4(l) 12 H2O(g) + 9 N2(g) + 4 CO2(g) Calculate ?H° for this reaction. in kJ
Calculate the potential of a galvanic cell with two platinum electrodes, the one immersed in a solution that is .0301 M in \(Fe^{3+}\) and .0760 M
The mass spectrum of 1-ethyl-1-methylcyclohexane shows many fragments, with two in very large abundance. One appears at m/z = 111 and the other appears at m/z = 97.
Calculate DE, and determine whether the process is endothermic or exothermic for the following cases: A system releases 43 kJ of heat to the surroundings and has 665 kJ of work done on it by the surroundings.
Sketch a well behaved wave function in 1-d with the labels I. High probability and high kinetic energy, ii low probability and low kinetic energy, ii high kinetic energy and low probability. Which of these (I-iii) will potential energy be highest
Explain why the element bromine prefers to have its two atoms form covalent bonds rather than ionic bonds
Complete the following potential energy diagrams for the formation of B and C by sketching the energy curve for each product. The diagrams are
A gaseous system undergoes a change in temperature and volume. What is the entropy change for a particle in this system if the final number of microstates is 0.808 times that of the initial number of microstates
the following reaction will be balanced in a acidicsolution mno-4 h2c2o4 --gt mn2 co2awhat is one of the balanced
The molecular weight of X is 65.0 g/mol. The heat required to melt one mole of the solid phase is 20.0 kJ, the heat required to sublime one mole of the solid phase is 40.0 kJ, and the heat required to vaporize one mole of the liquid phase is 30.0 ..
A sample of a gaseous compound of nitrogen and oxygen weighs 5.25 g and occupies a volume of 1.00 L at a pressure of 1.26 atm and temperature of -4.0 °C. Which of the following molecular formulas could be that of the compound
One of the lines of the hydrogen line spectrum has a wavelength of 434.1 nm. It is known that all of the visible lines of the hydrogen spectra result from an electron
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