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As a reaction occurs, the system loses 1150 J of heat to the surroundings. A piston moves downward as the gases react to form a solid. As the volume of the gas decreases under the constant pressure of the atmosphere, the surroundings do 480 J of work on the system. What is the change in the internal energy of the second piece of machinery once it has reached the roof? kJ
The solubility of AlF3 is 6.7 g AlF3 per liter of solution. The density of a saturated AlF3 solution is 1.0 g/mL. The Ksp of AlF3 is
how many grams of sodium lactate should be added to 1.00 of 0.150 lactic acid to form a buffer solution with 4.00?
You have a 10.40-g mixture of table sugar (C 12 H 22 O 11) and table salt (NaCl). When this mixture is dissolved in 150. g of water, the freezing point is found to be-2.24C. Calculate the percent by mass of sugar in the original mixture.
How many atoms of copper are in a pure copper penny that weighs 2.15 g? (1 amu = 1.6605 10-24 g)
Suppose a can contains a residual amount of gas at a pressure of 755 mm Hg and a temperature of 25 °C. What would the pressure be if the can were heated to 1155 °C?
In terms of the ionization energy and electron affinity of atom A, what is the energy change for this reaction? For a representative nonmetal such as chlorine, is this process exothermic? For a representative metal such as sodium, is this process ..
Most top-loading balances used in this experiment measure a mass only to the nearest mg(+/- 0.001 g). This significantly affects the calculation of R in the experiment
Question:?What are the physicochemical methods used for determination of metal ligand ratio for synthesis of a metal complex ?
The heat of combustion of cyclobutane is 650.3 kcal/mol. How much energy is released during the complete combustion of 450 grams of cyclobutane.
what is the value of kf for acetic acid given that its freezing temperature is 16.6 c and its density is 1.049 gml?
What is the overall order of the reaction? b.What is the order with respect to X?To Y? c.In a reaction
Determine the actual coefficient of performance of this cycle if the compressor and expander isentropic efficiencies are 0.790 and 0.880, respectively. Note: Not an ASC analysis.
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