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Preparation of chromium complexes such as [Cr(en)3](ClO4)3, the typical starting material is CrCl3 6H2O. When combined with excess ethylenediamine in an appropriate solvent, the reaction proceeds slowly, however the addition of a small, catalytic piece of Zn rapidly accelerates the reaction. Discuss this reaction in terms of the role Zn as a catalyst and the relative labilities of the oxidation state (or states) of chromium involved.
The volume of HI(aq) required to reach the equivalence point : (c) The pH at the half-neutralization point. (d)The pH at the equivalence point.
What is the molarity of a sodium hydroxide solution if 25.0 mL of this solution reacts exactly with 22.30 mL of 0.253 M sulfuric acid?
In the balanced molecular equation for the neutralization reaction between phosphoric acid and potassium hydroxide, the products are: a. 3H2O b. K3PO4 + 3H2O c. KPO4 + H3OH d. K+(aq) + PO43-(aq) + 3H+ + 3OH-
you have 1005.3 g of a bleach solution. the percent by mass of the solute sodium hypochlorite naocl is 3.62. how many
The following plot shows experimental data from a reaction. What is the third half life of the reactions if the slope of the plot if 0.0023 1/M*s and the y-intercept is 0.45 1/M ?
calibration data for a f-ion-selective electrode using kf standard solutions prepared in buffer of 0.5 m ionic strength
describe the change in conductivity as the concentration of the NaCl solution was increased by the addition of NaCl drops
After mixing, you filter it and find that the concentration of the filtered solution is 5ppm Cu2+. From the above scenario, calculate the mass of Cu2+ bound to the soil. Calculate the K(dis).
given the following equation 2c4h1013o28co210h2owhat mass of water forms if 6.5 l of c4h10g 0.500 g of n2g and 0.410 g
We have noted that water level rises to 62.4mL when a piece of metal of 48 grams is dropped into 50.0mL of H 2 O in a graduated cylinder. Determine the density of this metal?
how many liters of H2 would be formed at 528 mm Hg and 12 degrees celcius if 28.0g of zinc was allowed to react
A 0.5078g sample of impure nitrobenzene was treated with 1.044g of tin. when the reaction was complete, the residual tin was found to weight 0.338g. Calculate the percentage of nitrobenzene in the sample.
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