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For a spontaneous reaction A(aq) + B(aq) → A-(aq) + B+(aq), answer the following questions:
(a) If you made a voltaic cell out of this reaction, what halfreaction would be occurring at the cathode, and what half-reaction would be occurring at the anode?
(b) Which half-reaction from (a) is higher in potential energy?
(c) What is the sign of Ec°ell?
Using 250 mL of 0.250 M solution of CoCl2 and distilled water, how would you prepare 100 mL of 0.005M solution of CoCl2. What absorbance would you expect the solution to have
Producing hydrogen atoms from H2 molecules requires 436 kJ/mol to break H-?H bonds. For the longest-?wavelength photon capable of breaking a single H-?H bond, calculate
Suppose that a liquid is 11 times denser than water If you were to sip this liquid at sea level using a straw what would be the maximum length of the straw
Write the overall reaction of 0.5 M diamine in 0.5 M NaOH and 0.25 M diacid chloride in cyclohexane. This was used in a polymmerization experiment to make nylon. NaOH is important to the reaction and writing out the reaction will help to explain w..
What is the final temperature when 125 g of iron at 92.3 °C is dropped into 50.0 g of water at 27.7 °C? The specific heat of iron is 0.444 J g-1 °C-1 and the specific heat of water is 4.184 J g-1 °C-1.
when 31 g of phosphorus reacts with oxygen gas 71 g of an oxide of phosphorus is the product. what mass of oxygen gas
An unknown gas is found to effuse at a rate that is 1.864 times faster than Br2 at the same temperature. What is the identity of the gas.
sample of H20 with a mass of 46.0 grams has a temperature of -58.0 degrees Ceslius. How many joules of energy are necessary to heat the steam from 100.0 degrees celsius to 114.0 degrees
water can react with an acid or a base to produce two different products. draw the structure of each and label products
Write the reaction with water that is the ionization of propionic acid to propionate, draw this out in two ways. First with expanded structures, of course, all atoms and all bonds.
Sulfur trioxide dissolve in water, producing H2SO4. How much sulfuric acid can be produced from 13.5 mL of water and 26.1g of SO3?
A pipet delivers 10.5, 10.3, 10.9 and 10.7 ml. (a)find the mean volume and deviation from the mean for each and calculate the average deviation from the mean. (b) calculate the relative deviation (in %) for this set of data.
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