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A student has a solution containing a mixture of metal cations: Cu+2, Cr+2, and Fe+3, each a solution with NO3-anion. Adding a concentrated solution of NH4OH(aq) caused the precipitation of Cr+2and Fe+3as insoluble hydroxides. The Cu+2remained in solution and forms the complex ion Cu(NH3)4+2. Find all the balanced molecular equations, total ionic equations, and net ionic equations that represent each of these reactions.
Explain the original sample had a mass of 3.187 g. The dried precipitate has a mass of 2.005 g. Explain what is the percent of sulfur in the original ore
Presume the molar solubility of silver chromate (Ag2CrO4) is represented as x. Explain which of the following expressions correctly expresses the relationship between the molar solubility of silver chromate and the solubility product constant (Ksp..
If 3.8 kcal is released by combustion of each gram of glucose, how many kilocalories are released by the combustion of 1.41 mol of glucose?
Starting with 2-methyl-3-hexanone, show the complete mechanism for the acid-catalyzed formation of the imine using propylamine (Pr-NH2.)
A second worker approaches to within 5 meters behind a shield that attenuates 60% and remains there for 20.0 minutes. What is the ration between the absorbed doses for the two workers
Consider a chromium-silver voltaic cell that is constructed such that one half-cell consists of the chromium, Cr, electrode immersed in a Cr(NO3)3 solution, and the other half-cell consists of the silver, Ag, electrode immersed in a AgNO3 solution..
Calculate the maximum concentration in M of silver ions in a solution that contains 0.025 M CO3^2-. The ksp of AG2CO3 is 8.1 x 10^-12
The molecule C3H6F2 can exixt in three isomeric forms.(the three carbons are central atoms ,and the H and F atoms are bonded to the carbons.) Write the lewis formulas of the trhee isomers, predict their VSEPR geometries and sketch their molecular ..
What is the volume occupied by 27.0g of argon gas at a pressure of 1.08atm and a temperature of 320K
Write a balanced net ionic equation for the neutralization reaction and Tartaric acid,( C4H6O6) , has two acidic hydrogens.
After doing some analysis the probe finds out that the gas pocket contains an element that has an ionization energy of I=1453kJ/mol and an electron affinity of EA=51.0kJ/mol. Explain what is the identity of this element
What is the central atom for CO2, how many bonds are formed, is it polar or nonpolar, what's the direction of electronegativity
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