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Decide whether or not each of the following metals dissolves in 1 {rm M} {rm HCl}. For these metals that do dissolve, write a balanced redox reaction showing what happens when the metal dissolves.
A student calibrates his/her calorimeter. S/he performs part 1 as instructed. The data are: 99.4 g water at 36.0°C are added to 98.0 g water in the calorimeter at 16.0°C.
Calculate the energy released when a 28.9 gram piece of copper is cooled from its melting point of 1083 degrees C to 25.0 degrees C. The specific heat of copper is .385 J/g degrees C.
Identify the major type of interactive force of MgF2? how do you find the major type of interactive force?
Carbon monixide reacts with steam to produce carbon dioxide and hydrogen. At 700 k the equilibrium constant is 5.10. calculate the equilibrium concentrations of all species if 1.000 mol of each component is mixed in a 1.000-L flask.
A balloon filled with helium has a volume of 2.41 L on a warm day at 311 K. It is brought into an air-conditioned room where the temperature is 295 K. What is its new volume.
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.
a sample of oxygen occupies 1.00 x 10^6 mL at 575 mm Hg is subjected to a pressure of 1.25 atm. What will the final volume of the sample be if the temperature is held Constant.
A gas occupies 4.04 L at 860 torr and 10C. What volume will it fill if the pressure is changed to 731 torr and the temperature is raised to 43C
Determine the change in internal energy of the gas express your Answer in units of kJ and operates for nine minutes to heat the gas in a cylinder
Describe the basic steps involved in gravimetric analysis. How does this procedure help us determine the identity of a compound or the purity of a compound if its formula is known.
Calculate the number of molecules inside the cell, which is 3.6um long and 1.2 um in diameter.
A 10.0 g sample of krypton has a temperature of 25°C at 575 mm Hg. What is the volume, in milliliters, of the krypton gas?
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