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The decomposition of dinitrogen pentoxide obeys the rate-law expression rate = 0.080 min-1[N2O5]. If the initial concentration of N2O5 is 0.30 M, what is the concentration after 2.6 minutes? N2O5 ® N2O3 + O2 A) 0.38 M B) 0.028 M C) 0.24 M D) 0.13 M
Benzene has a heat of vaporization of 30.72 kJ/mol and a normal boiling point of 80.1 degrees C. At what temperature does benzene boil when the external pressure is 490?
Assume a 95% yield for the formation of the phosphonium ion, how many milligrams of benzyl chloride and triphenyl phosphine would you need to prepare 220 mg of benzyltriphenylphosphonium chloride?
How many electrons can be described by the quantum numbers n=7 and l=2? the answer is 10, why is this
Show the calculation for the moles of benzaldehyde, the moles of acetone, the theoretical yield of dibenzalacetone in grams, and the calculation for the % yield of the product (dibenzalacetone). Also indicate which reagent is the limiting reagent.
A student dissolved 3.00 g of Co(NO3)2 in enough water to make 100. ml of stock solution. He took 4. ml of the solution then diluted it with water to give 275 ml of a final solution how many grams of NO3- ion are there in the final solution? can y..
Write balanced half-reactions and the overall spontaneous reaction. (Type your answer using the format [NH4]+ for NH4+. Use the lowest possible coefficients.)
calculate q, w, delta E, and delta H for the process in which 88.0g of nitrous oxide gas (N2O) is cooled from 165 degrees celsius to 55 degrees celsius at a constant pressure of 5.00 atm.
compute the pH at the temperature of twenty five degrees Celsius of a solution combined by adding 50 mL of 1.60 M sodium hydroxide solution
A benzoic acid solution was prepared by adding 0.488 g benzoicacid to a 100 mL volumetric flask and then adding enough water tobring the total solution volume to 100.00 mL.
At 298, 1 atm, the heat produced by the reaction of 4.00mol of NO with molecular oxygen heats 1.07L liquid water from 298k to 348k. Calculate enthalpy for the reaction 2NO + O2 -> NO2, at 298k. Assume constant pressure and no heat lost.
Molecular weight and mole concept explained in this solution, The molecular weight of NaOH is 40. the molecular weight of a widely used buffer, HEPES, is 255
Which of the following observations is the strongest argument that in favor of the hypothesis that protein structure and function are related?
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