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A 5.00 mL aqueous suspension of elemental selenium was treated with 25.00 mL of ammoniacal 0.0360 M AgNO3. Reaction: 6Ag(NH3)2+ + 3Se(s) + 3H2O 2Ag2Se(s) + Ag2SeO3(s) + 6NH4+
After this reaction is complete, nitric acid was added to dissolve the Ag2SO3 but not the Ag2Se. The Ag+ from the dissolved Ag2SO3 and the excess reagent required 16.71 mL of 0.01370 M KSCN in a Volhard titration. How many milligrams of Se were contained in each millilitre of sample?
The total mass that can be lifted by a balloon is equal to the difference between the mass of gas in the balloon and the mass of air displaced by the balloon. How much mass could be lifted by the balloon stated above. What if the same balloon was ..
the experiment utilized only metal-metal ion redoxcouples. is it possible to determine the srp for non-metalsand their
What is the molarity of a solution prepared by diluting 25 drops of 0.35 M K2SO4 solution with 75 drops
Problem- Will the following equilibrium be spontaneous at standard temperature: H2O(l) + NaCl(s) rightwards arrow from blank to blank of NaOH(s) + HCl(g)?
Nickel is a transition element and has a variable valence.Using a nickel salt, 2 F (faradays) plate out 39.2 g ofnickel. What ions are in the solution of this salt? Atomic molar masss Ni = 58.7 g·mol-1
For the galvanic cell employing the cu, cu2+ and Cd, Cd2+ couples, calculate the maximum amount of work that would accompany the reaction of 1 mol of lead under standard conditions.
Triacyclglycerol are hydrolyzed by a basic solution. Show the mechanism for the base-induced hydrolysis of tristearate. Focus on just one fatty acid to show cleavage.
a molar heat capacity at constant volume of 3/2R initially at 298K and 10l is expanded with the surroundings maintained at 298K to a final volume of 20L in three ways ways a) isothermally and reversibly b) isothermally against a constant extenal p..
Draw a structure of the species that is formed at the lower PH if the acid proton adds to the azo nitrogen atom adjacent to the aromaic ring containing the SO3- group. Why does the proton adds to this particular nitrogen when two other nitrogen at..
Assuming the turbine is well insulated, what is the maximum power that can be generated by the turbine?
Determine the partial pressure of Ar, argon gas in the flask and A flask is filled with 1.20 of argon Ar gas at the temperature of twenty five degree Celsius.
If 2.55 mol of ethane (C2H6) undergo combustion according to the unbalanced equation C2H6 + O2 -→ CO2 + H2O , how much oxygen is required? Answer in units of mol.
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