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K2SO4 is a strong electrolyte. Find out the concentration of each of the individual ions in a 0.550 M K2SO4 solution.
We did an experiment to isolate acetysalicylic acid from aspirin using methanol; our percent recovery was 17%. What would be several reasons that we got less than 100% recovered
Determine the magnetic field B a distance z above the center of a circular loop of radius, r. After that show that the magnetic field at a given point inside a solenoid of n turns/unit length as well as carrying a current I is: B= 2 n I (cos1 + co..
What is the cell potential when the concentration of Cu2+ has fallen to 0.250M? 2. What are the concentrations of Pb2+ and Cu2+ when the cell potential falls to 0.370V?
P and O react to form two different P oxides. The mass % of Pin one of these oxides is 43.64% in the other, it is56.34%. State the empirical formula of each P oxide.
Add sodium hydroxide to copper(II) nitrate and use a stirring rod to test if the solution is basic. How do you establish whether the solution is basic? (Explain what else is needed, what observations are made, and what should be observed if the so..
give a complete specific mechanism for the formation of the ester ethyl 2-phenyl
A second student pours this volume into a graduated cylinder with divisions of 1 mL and reports the volume to be 72.2 mL. Are these two measurements consistent or contradictory
Calculate the heat of combustion of napathalien on a molar basis. Find the molar heat of comb.: q/1 mol. of napthalien
one important application of reverse osmosis is the desalination of seawater. to extract pure water from seawater using
Compute the number of moles of a gas that is present in a 7.55-L container at 45 degrees, if the gas exerts a pressure of 725 mm Hg.
Which of the following processes are exothermic. the formation of NaBr from its constituent elements in their standard state the breaking the bond of I2 the sublimation of Li the second ionization energy of Mg None of the above are exothermic
What is the pH of a buffer solution containing 0.155 mol dm-3 of benzoic acid and 0.315 mol dm-3 sodium benzoate.
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