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Silver sulfide is the tarnish that forms over time on polished silver. If a saturated aqueous solution of it at a certain temperature has a [Ag+] = 4 x 10^-17, what is the solubility product of silver sulfide at this temperature?
As the liquid vaporizes the plunger is pushed out. At equilibrium, the plunger reads 5.46 mL of gas. Atmospheric pressure is 740. mmHg. What is the approximate molar mass of the compound (in g/mol)?
Suppose you have a sample of sodium weighing 11.42 g. How many atoms of sodium are present in the sample.
What is the molarity of the carbonate ion in sodium carbonate, Na2CO3, prepared by dissolving 3.5 g of sodium carbonate in enough water to form 0.800 L of solution?
Calculate the voltage difference between two points of corroding iron differing only in their partial pressure of oxygen
Calculate the cell potential for the following reaction as written at 73C, given that [Cr2+]=.885M and [Fe2+]=.0100M.
What is the change in internal energy (in J) of a system that releases 675 J of thermal energy to its surroundings and has 5.60 * 10^2 cal of work done on it?
Where does the extra electron come from when determining the formal charge of NH2? N has 5 valence electrons and H each have one which lead to two bonds and one lone pair and one lone electron which equals a formal charge
What amount of the ultimate carbonaceous BOD is remaining after this time?
Polychlorinated biphenyls (PCBs), which were formerly used in the manufacture of electrical transformers, are environmental and health hazards. They break down very slowly in the environment. The decomposition of PCBs can be represented by the equ..
what is the functional groups and molecular formula of aspartame, the NH2 is below the 3rd C and the CH2 is below the 5th C
Drinking water in the USA cannot exceed 0.5 ppm mercury. What mass of mercury is present in 1.3 L of water at this concentration. What is the molar concentration of mercury
Energy of visible photos and breaking of the bond in AgI, The silver iodine bond energy is approx 255kJ/mol. (AgI is one of the active components in photograpgy sunglasses.)
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