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What is the molar solubility of silver bromide in a solution that also contains 0.050M Ag+ ions at 25 °C? The Ksp of AgBr is 5.4 × 10-13.
Write a balanced equation for the reaction. What volume of 0.200M MnO4- solution is needed to titrate 22.5mL of a 0.350M solution of ethanol?
ichromate solution is 0.0189 M dichromate, and it took 26.01 mL of your standard iron solution to titrate the excess dichromate in an unknown. What is the chemical oxygen demand of the sample, in units of mg O2/L?
the structures of the ions Ni2+ (aq) and Fe3+ (aq) as they exist in aqueous solution in octahedral shape.
Calculate the max wavelength of light (in nm) required to ionize a single lithium atom, knowing that the ionization energy of lithium is 520 kJ/mol
the sandals in disintegrations per minute per gram? Assume the original activity was 15.3 disintegrations per minute per gram.
Would the mass of the precipate collected be more, unchanged, or less if the residue was washed with hot distilled, deionized water instead
A stock solution is prepared by adding 24 mL of 0.4 M Na3PO4 to enough water to make 76 mL. What is the PO43- concentration of 25 mL of the stock solution
determine whether the various proteins are integral or peripheral and exposed to which side of the membrane
A 39.0 mL solution of 0.500 M Cd(NO3)2 is prepared. What mass of NaOH is needed to precipitate the Cd2+ ions from this solution?
Which element is the central atom? Hydrogen cyanide, Ammonia, Calcium carbonate, Magnesium sulfate
the density of an unknown compound made from sulfur and oxygen is 2.47 x 10^-3 g/mL at 23 C and 76 kPa. what are the possible molecular formulas for the compound?
Compute the band gap for this semiconductor material after Consideing an intrinsic semiconductor with a conductivity σ that triples between the temperature 27 degree Celsius and 57 degree celsius.
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