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Ammonium nitrate decomposes to N2O and water at temperatures between 250 degrees celsius and 300 degrees celsius. Write a balanced chemical reaction describing the decomposition of ammonium nitrate (please include phases), and calculate the standard heat of reaction using the appropriate enthalpies of formation.
An aqueous antifreeze solution is 40.0% ethylene glycol (C2H6O2) by mass. The density of the solution is 1.05 g/cm3. Calculate the molality, molarity, and mole fraction of the ethylene glycol.
boron has two naturally occurring isotopes 10b 19.9 and 11b 80.1. although the b2 molecule does not exist naturally on
The density of olive oil is 0.918 , the density of vinegar is 1.006 , and the two do not mix. If a certain mixture of olive oil and vinegar has a total mass of 407.1 and a total volume of 421.6 , what is the volume of oil and what is the volume of..
Describe the Rutherford's model of the atom and compare it with the model proposed by his student Niels Bohr. What is meant by 3p^3
The activation energy for a reaction is 55.5 kj/mol. if the rate constant for the reaction has a value of 1.35 * 10^2 s^-1 at 25 degrees Celsius what will it be at 95 degrees Celsius
A power company burns approximately 474 tons of coal per day to produce electricity. If the sulfur content of the coal is 1.30% by weight.
The compound K2SiO 3 • χH2O is a hydrated crystal. It is analyzed for percent water in a procedure similar to the laboratory assignment with barium chloride
If both enzymes catalyze their reaction with similar rates, explain why the hydrolysis of the starch molecule is accelerated when both enzymes act together.
an aqueous solution of hydroiodic acid is standardized by titration with a 0.275 m solution of potassium hydroxide.if
How many milliliters of a 15.0% by mass solution KOH(aq) (d=1.14g/mL) are required to produce 26.0L of a solution with pH=11.50? express answer using 2 significant figures.
Calculate the volume of concentrated sulfuric acid, containing 98% H2SO4 by mass, that would contain 40.0 g of pure H2SO4.
Based on the standard reduction potential, which species is oxidized when current is allowed to flow? B. Calculate the value of Q, the reaction quotient, for this cell reaction. C. Calculate the actual cell potential at 25 degrees C.
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