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If the initial temperature of an ideal gas at 2.250 atm is 62C, what final temperature would cause the pressure to reduce to 1.500 atm
what is the quantity in grams of formic acid and sodium formate necessary to make 500 mL of a buffer that has a formic acid concentration of .75 M and a sodium formate concentration of .75 M?
Find the mass of AlCl3 that is produced when 25.Og of Al2O3 react with HCl according to following equation Al2O3+6HCl-
Calculate the change in free energy (Delta G) for the combustion of 1 mol of ethane C2H6 in oxygen gas. The products are carbon dioxide and water.
The tire is filled with dry air at sea level and a temperature of 60F to 32lb/in^2. Standard sea level pressure is 101325 Pa at 0 degree C (STP). How many moles of air are contained in the tire. How many molecules
A gas sample in a piston assembly expands, doing 588 kJ of work on its surroundings at the same time that 372 kJ heat is added to the gas.
The formula weight of compound X is 14,200 g/mol How many total mg of X are there in the panda pancreas?
How many mL Hydrochloric acid of 0.1 M must be added to 100 mL of a 0.2 M solution of tris base to form a buffer ( pH 7.8)?
How many grams of ammonium chloride and how many milliliters 3.0 M sodium hydroxide should be added to 200 ml water and diluted to 500 ml to prepare a bufffer
At noon on a clear day, sunlight reaches the earth's surface at Madison, Wisconsin, with an average power of approximately 8.00 kJ·s-1·m-2. If the sunlight consists of photons with an average wavelength of 510.0 nm
a running track measures 1056 ft per lap. to run 15.0 km how many laps should you run? How do you break the equation down into a solution map?
1.60 M solution(78.0 mL ) is diluted to a volume of 278 mL and a 139-mL portion of that solution is diluted using 175 mL of H 2 O ,water determine the final concentration?
The rate constants of some reactions double with every 10 degree rise in temperature. Assume that a reaction takes place at 350 K and 360 K. What must the activation energy be for the rate constant to double as described
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