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The subsequent is the overall balanced reaction for a lead-acid battery. Explain what is the balanced half-reaction that goes on at the cathode without electrons indicated?
Pb(s) + PbO2(s) +2H2SO4(aq) yields 2PbSO4(s) + 2H2O
21.54 mL of 0.2821M NaOH was titrated utilizing an unknown concentration of HCl. During you titration, you recorded an initial volume of HCl of 10.27mL as well as a final volume of 30.21 mL. Explain what is the molarity of HCl solution.
Does 1,3-cyclohexanediol contain any stereocenters. If so, mark them then determine how many different stereoisomers exist. Draw Fischer projections for all unique stereoisomers and identify the sets of enantiomers and diastereomers.
Suppose that the gas in a storage tank exerts a pressure of 55.125 lb/in2 . What is the pressure of the gas in units of torr?
(a) Write the reaction equation, (b) indicate which product is predominant at low temperature, (c) which product is predominant at high temperature, and (d) draw a reaction energy diagram explaining your answers in b and c.
What mass of water is necessary to prepare each of the following solutions? 1.) 200.0g of 1.30\% saline solution 2.) 80.00g of 15.0\% sugar solution
Sufficient of a monoprotic acid is dissolved in water to produce a 0.0133 M solution. The pH of the resulting solution is 2.42. Compute the Ka for the acid.
Show that the ratio of the surface area to the volume of the sphere is smaller than that for a cube of equal volume
A 50.00 mL sample of the solution (1L of 0.01000M solution requires 2.14g of potassium iodate), mixed with 2 g of potassium iodide and 10.00 mL of (H_{2}SO_{4}), is fully titrated with 38.50 mL of sodium thiosulfate. What is the concentration of th..
Write a dissolution for each precipitate that is soluble in CH3COOH: Na2C2O4, Pb(NO3)2, Al2(SO4)3, NaCl, NaOH
Magnesium oxide reacts slowly with water to form magnesium hydroxide. What would be the effect on the observed value for ∆H_rxn for the reaction of MgO if 10%
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.230 M HClO(aq) with 0.230 M KOH(aq). The ionization constant for HClO can be found here.
A student prepared a stock solution of the assigned compound by weighing 2.345 grams of Cu(NO3)2. 6H20 and diluting it with water to a final volume of 25.00mL.
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