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A sheet of gold weighing 8.5 g and at a temperature of 11.0 degrees C is placed flat on a sheet of iron weighing 21.0 g and at a temperature of 56.9 degrees C. What is the final temperature of the combined metals? Assume that no heat is lost to the surroundings.
an unknown gas composed of a diatomic molecule effuses at a rate that is only 0.355 times as fast as that of oxygen gas
an infinitely sharp zone of solute is placed at the center of acolumn at time t 0. after diffusion for time t1 the
A solution of only A is made that is initially 0.800 M. After the solution is allowed to reach equilibrium, it is determined that the concentration of B is 1.20 x 10^-4 M. Use this information to determine the equilibrium constant for the reaction..
How many liters of O2 gas measured at 861 torr and 250.0°C are formed by the decomposition of 200. g of KClO. (You will need a balanced equation where KClO is the reactant. The other product is KCl.)
A chemical engineer injects limestone into the hot flue gas of a coal burning power plant to form lime, which scrubs SO2 from the gas and forms gypsum (CaSO4.2H2O). Find Kc for the following reaction
The temperature inside a pressure cooker is 1150C. Calculate the vapor pressure of the water inside the pressure cooker.
Determine how much heat is released at constant pressure if 471.0 g of NO2 is produced,?
Correct the second part of each of the following statements. (Type your answer using the format copper(II) chloride for CuCl2, and CO2 for CO2.) (a) SF6 is sulfur heptafluoride. (b) Phosphorous pentachloride is Cl5P. (c) Carbon tetrachloride is CC..
Compare this energy ( 23 Joules) to the amount of energy absorbed by a person's body if they jumped from a chair to the floor (assume that all of the energy from the fall is absorbed by the person and h=0.5 m).
Calculate the expansion work done when 50g of water is electrolysed under constant pressure at 25C.
Write half reactions for the anode and cathode and the write a balanced cell reaction. Please include the states of matter in the equation
The Ksp for AgBr is 4.1 X 10-13. Will a precipitate form if 25 ml of 3.45 X 10-8 M AgNO3 solution is mixed with 25 ml of 4.65 X 10-5 M NaBr solution
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