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If a temperature increase from 22.0 degrees Celsius to 33.0 degrees Celsius triples the rate constant for a reaction, what is the value of the activation barrier for the reaction?
What type of electromagnetic spectrum is this radiation? microwave ultraviolet infrared x-ray (b) If the detector is capturing 8. 107 photons per second at this wavelength, what is the total energy of the photons detected in one hour? 8.20e12 J/hr
4 HNO3(aq) + Cu(s) => Cu(NO3)2(aq) + 2 H2O(l) + 2 NO2(g) Considering which elements are being oxidized and reduced, determine
What is the final concentration (in M) of 18.5 mL sodium chloride solution with an initial concentration of 1.78 M which is diluted with 15 mL of solvent? Assume the volumes are additive.
lead poisoning in children used to be treated with intravenous injections of EDTA. If the concentration fo EDTA in the blood of a patient is 2.55 x 10^-8 M and the formation constant for the complex, [Pb(EDTA)]2-, is 2.00 x 10^18
sample of carbon monoxide gas occupies a volume of 0.225 L. The gas is transferred to a 1.50-L flask and the temperature is reduced to -15 degrees C. What is the pressure of the gas in the flask?
Consider the reaction NO + O3 → NO2 + O2 Which has a rate constant given by k = 1.8×10-12 e-1370/T cm3 molecules-1 s-1
Explain why the CO ligand donates the lone pair on carbon in bonding to metals rather than the pair
What is the balanced net ionic equation for precipitation of CaCO3 when aqueous solutions of Na2CO3 and CaCl2 are mixed
You believe you have cracked a secret code that uses elemental symbols to spell words. The code uses numbers to designate the elemental symbols.
A voltaic cell consists of a Mn/Mn2+ electrode (E° = -1.18 V) and a Fe/Fe2+ electrode (E° = -0.44 V). Calculate [Fe2+] if [Mn2+] = 0.050 M and Ecell = 0.78 V at 25°C.
Derive explicitly equations for number and weight average molecular weight in a linear polycondensation reaction of A-B type monomers.
Calculate total and individual w, q, ΔU, ΔH, and ΔS of an Otto engine operating on stoichiometric ethanol - oxygen gas mixture, with cylinder volume of 1 l and compression ratio of 18:1.
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