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At 40 C H2O2(aq) will decompose according to the followingreaction: 2H2O2 (aq) -----> 2H2O (l) + O2 (g) The following data were collected for the concentration ofH2O2 at various times: Time (s) H2O2 (mol/L) 0 1.000 2.16 x 104 0.500 4.32 x 104 0.250 a) calculate the average rate of decomposition of H2O2 between0 and 2.16 x 104 s. Use this rate to calculate the averagerate of production of O2 (g) over the same time period. b) what are these rates for the time period 2.16 x 104 s to4.32 x 104 s ?
All matter posseses wave properties. a rock weighing 79442grams going 60 miles per hour, calculate the wavelength in meters.
According to Raoult's law, which statement is false?
a 0.336 gram sample of sodium carbonate required 28.6ml of a sulfuric acid solution to reach the endpoint for the reaction Na2CO3 +
Identify the substance produced in the liver that helps catalyze this reaction.
In an oxidation-reduction reaction, it required 25.6 ml of a 0.65 M potassium permanganate solution to reach the equivalence point with 15.0 mL of an iron(II) sulfate solution.
A scientist wants to make a solution of tribasic sodium phosphate, Na3Po4, for a laboratory experiment. How many grams of Na3PO4 will be needed to produce 425 mL of a solution
What is the change in the measurement of the potential if a solution of 1.00x10-3 M NaF is exchanged for another solution of 1.00x10-4 M NaF?
Does ammonium chloride added to water produce a simple solution, does the ammounium chloride dissociate or does a chemical reaction occur resulting in a new set of compounds.
For the reaction A --> B, the activation energy is Ea = 125 kJ/mol and the heat of reaction, H = 50 kJ/mol. What is Ea for the reverse reaction in kJ/mol?
Write a balanced chemical equation for the neutralization reaction upon which this titration is based, and indicate clearly which atom is being protonated
How much heat is required to raise the temperature of a mole of oxygen from 298 to 3000 K at constant pressure. The book gives the following values for Cp (specific heat at constant pressure): 29.376 J/(K*mol) at 298 K and 39.884 J/(K*mol) at 3000 ..
Zinc phosphate (Zn3(PO4)2) has a solubility product constant Ksp = 9.0 x 10^-33. What is the solubility of zinc phosphate in... a) ...pure water? b) ...0.02 M ZnCl2? c) ...0.005 M Na3PO4
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