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1. For the uncatalyzed decomposition of H2O2(aq) to form H2O(l) and O2(g), the activation energy (Ea) and the change in energy(?E ) are 75.3kJ/mol and -98.1kJ/mol respectively. (15Points)a. Sketch the energy profile for this reaction.
b. What is the activation energy for the reversereaction?
c. How would the energy profile change (if any) if thereaction had a two step mechanism and the first step is the ratedetermining step?
Ag3AsO4 precipitated and was filtered off. Fe3 was added and the solution was titrated with 0.2500 M KSCN. After 35.80 mL of KSCN solution had been added, the solution turned red. What mass of AsO43- was in the original solution
determine whether a solid forms when solutions containing the following salts are mixed. if so write the net ionic equation for the reaction. a)Na3PO4(aq) and AgNO3(aq). b)K2SO4(aq) and Na2CO3(aq). c)Pb(NO3)2(aq) and Na2CO3(aq). d)BaCl2(aq) and KO..
Calculate the number of photons emitted in one second by a 13 W laser operating at a wavelength of 400.0 nm. photons
A buffer solution contains 0.10 mol of acetic acid and 0.13 mol of sodium acetate in 1.00 L. What is the pH of this buffer?
A certain second-order reaction (B--->products) has a rate constant of 2.00×10^-3 M^-1 s^-1 at 27 Celsius and an initial half-life of 214 s. What is the concentration of the reactant after one half-life
A current of 0.0100 A is passed through a solution of rhodium sulfate, causing reduction of the metal ion to the metal. After 3.00 h, 0.038 g of Rh has been deposited. What is the charge on the rhodium ion, Rhn+? What is the formula for rhodium su..
when food inside the pressure cooker boils steam is produced. using the particle theory of matter please explain i why
When 3 methyl 1 butane reacts with Hbr, two alkyl halides are formed: 2 bromo 3 methylbutane and 2 bromo 2 methyl butane. Propose a mechanism that explains the formation of these products.
A chemist dissolves 543.mg of pure potassium hydroxide in enough water to make up 140.mL of solution. Calculate the pH of the solution?
Suppose that 2.00mL of isopently alcohol was reacted with excess acetic acid and that 2.00g of isopentyl acetate was obtained as product. Calculate the percentage yield.
A student find out the mass percent of Ni is 29.7%, NH3 is 34.4%, and Cl is 35.9% in a compund containing Nickel, ammonia, and chlorine. The empirical formula of the compund is
Ethylene glycol, C2H6O2 (MW=62.1mol) has a density of 40.0 mass percentage and a solution of ethylene glycol in water is 1.0514 g/mL at 20 EC. Calculate the molality of the solution
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