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If a second-period diatomic molecule has 5 electrons in its valence shell (total of 2s and 2p electrons), what is the predicted bond order of the molecule?
Chloroform has a molar mass of 119.4 g/mol and a density of 1.499 g/cm^3. Estimate the volume of the above mixture using this information.
Determine the concentration of SO42- necessary to precipitate BaSO4 and SrSO4. Which compound, BaSO4 and SrSO4, precipitates first. What is the SO42- concentration when the second ion begins to precipitate
Assuming efficiency of 26.70 %, calculate the actual yield of magnesium nitrate formed 139.4 g of magnesium and excess copper (II) nitrate. Mg + Cu(NO3)2 -> Mg (NO3)2 + Cu
When ethyl ether is heated with excess HI for several hours, the only organic product obtained is ethyl iodide
Calculate the full width at half height (FWHH) of a Gaussian function exp(-πx2/σ2). By considering a monochromatic source show that a Michelson interferometer performs a Fourier transform of the source in the frequency domain to a signal in the tim..
Reaction kinetics - Determination of the activation energy of the reaction between oxalic acid and potassium permanganate.
determine the empirical formula using the following mass data. asample contains 15.136g of carbon 1.762g of hydrogen
Why was it reasonable that such a model exists and what evidence was there that it works. why do we no longer believe in it
(a) Draw a diagram of the electrochemical cell, labeling all electrodes and solutions. (b) What is the pH in the Pt | H+ | H2 half-cell? (c) What is the value of the equilibrium constant for the reaction occurring in this cell
dissolved in 200 mL of solution. What is the pH of the solution? pKa1 = 6.37 and pKa2 = 10.25.
A student carried out the synthesis of aspirin starting with 3.48g of salicylic acid. After carrying out the reaction, recrystallizing and then drying the product, the student obtained 3.30g of aspirin. Calculate the student's percent yield.
What is the experimental yield (in g of precipitate) when 18.6 mL of a 0.634 M solution of barium hydroxide is combined with 19.5 mL of a 0.558 M solution of aluminum nitrate at a 85.4% yield
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