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The rate constant for the reaction 2A ? 2B + C is 1.72 M -1min-1. Find the time, in seconds, needed to decrease the concentration of A from2.45 M to 1.22 M.
An average adult inhales a volume of 0.50 l of air with each breath. if the air is warmed from room temperature (20c) to body temperature (37c) while in the lungs.
A metal, M, was converted to the chloride, MCl2. Then a solution of the chloride was treated with silver nitrate to give silver chloride crystals, which were filtered from the solution
How many grams of solute are present in each of the following aqueous solutions?
In an acid-base titration experiment, 50.00 mL of a 0.0500 M solution of acetic acid (ka=1.75 x 10^-5) was titrated with a 0.0500 M solution of NaOH at 25 degree C
Calculate the percent yield for a student who completed experiment 27A and collected the following data. Give your answer to two decimal places.
A gas-filled balloon having a volume of 6.00 L at 1.2 atm and 25°C is allowed to rise to the stratosphere (about 30 km above the surface of Earth), where the temperature and pressure are -23°C and 3.00 10-3 atm, respectively. Calculate the final v..
Molten carbonate fuel cells fueled with H2 convert as much as 60% of the free energy relased by the formation of water from H2 and O2 into eletrical energy
Calculate the change in entropy when one mole of ice at ?10.0°C and 1 atm is converted to liquid water at ?5.0°C and 1 atm. The molar enthalpy of fusion for H2O
The decomposition of N2O5 in CCL4 is a first order reaction. If 2.56 mg of N2O5 is present initially and 2.50 mg is present after 4.26 minutes at 55 degrees Celsius what is the value of the rate constant K?
If this energy were used to vaporize water at 100 degrees C, how much water in liters could be vaporized? (Assume that the density of water is 1.0 g/mL.)
A 58.0 mL solution of 0.500 M Cd(NO3)2 is prepared. What mass of NaOH is needed to precipitate the Cd2+ ions from this solution?
What is the Volume of 1.05mol of Benzene (C6H6) at 20.7 degrees C. The density of Benzene is 0.879 g/mL
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