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1) Cerium is often used as a reducing agent. Although it is expensive, it has a high stabile and constant value of E^ o over a PH range from 0 to 7.
Ce^3+ (aq) + 3e^- ------- Ce (s) E^o = -2.34
a) At PH 0, can cerium be used to reduce to reduce fully oxidised vanadium (VO2^+(+ve is up)) to its metallic state (assuming a limitless supply of Ce)? Write a balanced equation and predict the standard potential (E^o) of the reaction
During a strenous workout, an athlete generates 1890.0 kj of heat energy. What mass of water would have to evaporate from the athlete's skin to dissipate this much heat?
The mixture is diluted with deionized water to the mark and shaken vigorously. What mass of AgBr would precipitate from this mixture?
For H3PO4, a tripotic acid, Ka1 = 7.1 × 10-3, Ka2 = 6.3 × 10-8, and Ka3 = 4.5 × 10-13. What is the pH of a solution which contains 0.200 mol of K2HPO4 and 0.300 mol of Na3PO4 per liter of solution?
A 3.00-l flask is filled with gaseous ammonia, . The gas pressure measured at 18.0 C is 1.55 atm . Assuming ideal gas behavior, how many grams of ammonia are in the flask?
A mass of 48.5 g of a certain substance can be dissolved in 29.1 cm3 of water at 20 Degree Celius. Calculate the solubility of this substance per gram of water at the same temperature.
the mass of component A is 2.47 g, component B is 1.12 g, and component C is 0.654 g; what is the percent composition of component A?
Use regression analysis to investigate the relationship between the number of fatal accidents and the percentage of drivers under the age of 21. Discuss your findings.
Sample of solid naphthalene is introduced into an evacuated flask. Use the data below to calculate the equilibrium vapor pressure of naphthalene (C10H8) in the flask at 25°C.
Describe the experiment(s) (as necessary), observations (as necessary), and results (as necessary) which would allow you to distinguish between
A 397 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 639 mmHg. Calculate the moles of Ar present
Tris is widely used in a biochemical laboratory. Its acid dissociation constant is 8.32 x 10^-9. You have available at your lab bench a 0.1 M solution of Tris in its protonated form, 0.1 M solution of HCL and NaOH,
Identify the oxidizing agent and the reducing agent for rm Ba(s) + Cl_2(g) to BaCl_2(s)?
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