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Arrange the subsequent ionic compounds in order of reducing amount of energy released in lattice formation: NaF, CaO, InN, and RbBr.
When 1-bromomethylcyclohexene undergoes solvolyeses in ethanol, two products will result. But the intermediate of one product is more stable than the other.
Find the concentrations of the ions and of acetic acid in a 0.1 M solution of acetic acid at the body (pH of 7.4) H3O+, CH3CO2-1, CH3CO2H.
Identify the spectator ions that will form when aqueous solutions of sodium carbonate and silver nitrate are mixed. Answer a. Na+, NO3-, and Ag+ b. Na+ and CO32- c. Ag+ and NO3- d. Na+ and NO3- e. Ag+ and CO32-
When the coal is burned, it produces SO2 emissions which then reacts with calcium dioxide to form solid calcium sulfite. If the coal is burned in a plant that uses 1784 tons of coal per day what is the daily productionof calcium of sulfite in Kg (..
A 500ml Buffer solutin is 0.150 M in HNO2 and 0.175 M in KNO2. The Ka for HNO2 is 4.6*10^-4. What is the inital pH of this buffer. What is the pH of the buffer in the question above if 0.0049 moles of HCl are added assuming no change in volume
Half an alka seltzer tablet is dissolved and completely reacted in 25mL of HCL, and the gas produced displaces 0.240L of water from a secondary flask.
Draw an absorption spectrum of leucoindigo. What color is absorbed by leucoindigo? Draw a simple energy level diagram of leucoindigo. Calculate the energy difference between energy levels.
Explain which of the following choices are conjugate acid-base pairs and will produce a buffer solution. Please explain your reasoning. There may be more than one correct choice.
In the Bohr model of the atom, each of these bands corresponds to a transition from a particular quantum orbital energy level to another (n = 1, 2, 3,...). For mercury, which observed color band corresponds to the largest energy difference between..
important to dry the hexane extract phase containing the yellow and green pigment prior to performing column chromatography.
Calculate the pH of an HCl solution if 16.5 mL of this HCl solution is titrated with a 0.454 M NaOH and it took 5.65 mL of the NaOH to reach the equivalnce point.
Compute the total change in Enthalpy (delta H) if you heat 25 grams of mercury liquid from 25 degrees Celsius to 75 degrees Celsius as well as also increase the pressure from 1 bar to 75 kbar
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