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What precipitate is formed when solutions of aluminum nitrate and calcium chromate are mixed? What mass of precipitate is formed when 358 mL of 1.58 M CuNO3 is mixed with 491 mL of 0.87 M Ba(OH)2?
Classify each of the following compounds as ionic or molecular. If it is ionic, classify it as a Type I or Type II ionic compound. CoCl2, CF4, BaSO4, NO
Calculate the standard enthalpy of the reaction for the oxygenation of deoxyribose to ribose
Does anyone know the balanced equation piperonaldehyde (C8H6O3)+ acetophenone (C8H8O)= 3,4-methylenedioxychalcone(C16H12O3)
an oxygen-oxygen bond has an enthalpy of 498 kj/mol , and the standard enthalpy of formation of CIO2(g) is DH f=102.5 kj/mol , use Hess's law to calculate the value for the enthalpy of formation of CIO (g)
Aluminum reacts with oxygen to make aluminum oxide. If 5.2 moles of aluminum react, how many moles of aluminum oxide are formed. Show work.
a graduated cylinder contains 138 of water. a 12.0 piece of iron density 7.86 and a 22.0 piece of lead are added.
Draw a planar structure for the following compound using dashed or solid wedges to show the stereochemistry of the substituent groups. To be graded properly
75.0 mL of a 1.80 M solution is diluted to a volume of 258 mL. A 129-mL portion of that solution is diluted using 187 mL of water.
Use the preceding information to predict the value of E for a silver-silver chloride electrode saturated with KCl. For the silver-silver chloride electrode, E° = 0.222 V
Calculate the hydroxide ion concentration in a solution that is 0.068 M morphine C17H19O3N and 0.045 M morphine hydrochloride C17H20O3NCl. Kb of C17H19O3N is 1.6 x 10^-6
Consider a sample of excited atoms that lie 3.483*10^-19 J above the ground state. Determine the emission wavelength of these atoms.
What weight of A would be removed by four successive extractions with 25-mL portions of ligroin? How much ligroin would be required to remove 98.5% of A in a single extraction?
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