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A sample of 1.00 mol of perfect gas molecules, originally at 1.00 atm, with a molar heat capacity at constant pressure of 7/2 R is put through the following cycle: a. constant volume heating to twice its initial temperature, where ?T = 298 K, b. reversible, adiabatic expansion back to its initial temperature, c. reversible, isothermal compression back to 1.00 atm
Give Structures- Indentify unknown organic liquids, An unknown organic liquid, A, was found to burn with yellow, sooty flame and give a positive Lucas test (about 5 min). Upon treatment with sodium dichromate-sulfuric acid solution it produced Comp..
Calculate the Total Cell Number, You are given a 500ml culture of Euglena from which a 1 ml sample is taken and put in 49 ml of water. Absorbance was measured on this sample but the reading was off the scale
Calculate the molarity of 500.0 cm3 of solution containing 18.5 g of calcium nitrate Ca(NO3)2
How many grams of water can be cooled from 45c to 15c by the evaporation of 65g of water? (The heat of vaporization of water in this temperature range is 2.4kj/g. The specific heat of water is 4.18j/k*mol .)
If the barometric pressure is 784 torr and the experiment is carried out at 25 oC, what is the pressure of the gas collected?
determine the final volume of the gas If the gas ocupied 68mL, initally and determine the molarity of the solution
Ideally what should the ratio between the three slopes (AlCl3 slope= 483.0 , CaCl2 slope= 421.4, and NaCl slope= 181.9) be? What are your actual experimental ratios?
How many milliliters of 0.483 M HBr solution can be made from 38.0 mL of 8.00 M HBr solution?
A 0.479 g sample of nitrogen, oxygen or neon gas occupies a volume of 265 mL at 157 kPa and 20?C. What is the molar mass and identity of the gas
How many grams of CaH2 are needed to generate 145 liters of H2 gas if the pressure of H2 is 825 torr at 21 C.
How many grams of are CaH2 needed to generate 147L of H2 gas if the pressure of H2 is 827 torr at 20 C?
How many seconds after the start of the reaction does it take for the reactant concentration to decrease to 0.0131 M?
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