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Explain the octet rule and the duet rule in terms of orbitals. It will be helpful for you to draw out the electron configurations for a few of these elements and examine them.
Air is 21 mole percent oxygen, that is, 0.21 atm oxygen at 1 atm. Suppose the pH of the water is 5.28 and that the concentration of iron(II) in the water is 5.38x 10-5 M, what is the potential of the corrosion reaction under the above conditions a..
How many milliliters of 1.00 M KOH should be added to 100 mL of solution containing 10.0 g of histidine hydrochloride
How many planes of symmetry does a benzene molecule possess? What chloro-substituted benzene of formula C6HnCl6-n has exactly four planes of symmetry
What mass of solid sodium formate (of MW 68.01)must be added to 115 mL of 0.57 mol/L formic acid (HCOOH) to make a buffer solution having a pH of 4.16? Ka = 0.00018 for HCOOH.
A voltaic cell consists of a Zn/Zn^2 + half-cell and a Ni/Ni^2 +half-cell at 25C. The initial concentrations of Ni^2 + and Zn^2 + are 1.70 M and 0.100 M, respectively.
A 0.150 M NaCl solution is referred to as a physiological saline solution because it has the same concentration of salts as normal human blood. Calculate the mass of NaCl needed to prepare 275.0 mL of a physiological saline solution.
Given an equation and an enthalpy change, how much heat is involved when a certain amount of an element
How many grams of DRY alum can be obtained from 20.0g of aluminum when the reactions proceeds with 60.0% yield? How many grams of WET alum can be obtained from 20.0g of aluminum when the reactions proceeds with 60.0% yield
Find the mass of carbon in 1.750 L of acetic acid (CH3COOH) given the density of acetic acid is is 1.050g/mL.
A 250.0-mL sample of ammonia, NH3(g), exerts a pressure of 833 torr at 42.4 C. What mass of ammonia is in the container?
determine the molarity of a saturated nai sodium iodide solution aqueous formed as twenty five degree celsius
Calculate pH of the solution after addition of 0.20 mols of KOH. The Ka for HNO2 is 4.3*10^-4
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