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Describe the components and operation of a concentration cell, including what distinguishes them from other types of galvanic cells. Include all necessary parts of the cell and the purpose of each.
A solution is prepared by adding 20g of magnesium hydroxide solid to 2L of water that contains 10-5 MoI/L of Ca(OH)2. Determine the concentration of magnesium in the solution. Is there any solid magnesium hydroxide? How many grams
Calculate the corresponding Bohr's orbit radius. - Calculate and compare the probabilities for the electron to be at distances larger and smaller than this value.
Propose ways with appropriate equations that would enable you to measure the D H ° f values of Ag 2 O( s ) and CaCl 2 ( s ) from their elements. No calculations are necessary.
A box contains a mixture of small copper spheres as well as small lead spheres. The total volume of both metals is measured by the displacement of water to be 423cm3 as well as the total mass is 4.27kg. Explain what percentage of the spheres are c..
(a) Calculate the percent ionization of 0.00190 M acetic acid (Ka = 1.8e-05). % ionization = % (b) Calculate the percent ionization of 0.00190 M acetic acid in a solution containing 0.0710 M sodium acetate. % ionization = %
Use Hess's Law and the reactions found on The table of standard enthalpies of formation to find ?H for the following reactions:
consider the combustion of methane, CH4:CH4 + 2 O2 (g) -->CO2(g) + H2O suppose 1.5 mol of methane is allowed to react with 4 mol of oxygen what is the limiting reagent?
Calculate the mass (in grams) of the product formed when 3.95 of Ba completely reacts. Assume that there is more than enough of the other reactant
Depict the major monobrominated organic product resulting from the reaction of o-isopropylacetophenone under brominationconditions.
How much work would have been done if the gas were ideal? Account for the differences the two values.
Burning coal yields about 30 . 106 J of energy per kg of coal burned. Assuming that the coal power plant is 30% efficient, how much coal has to be burned
This reaction's half life is 35.0 at 680C. If you had 520 mmHg of phosphihne in an 8.00 L flask, how long does it take for the pressure in the flask to rise to standard pressure
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