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For benzene(C6H6), AE=30 and NE=38. Explain how the eight-electron deficiency is eliminated by the structure of the molecule.
Explain why it is important that the glassware and reagents used in a Grignard reaction are completely dry. Write an equation that describes what happens if phenylmagnesium bromide reacts with water.
Determination of Molecular SO2 Needed for Protecting Wine, You have just finished fermenting a wine and the pH = 3.7. You need 2mg/L "molecular" SO2 to protect the wine. What level of free SO2 do you have to add to achieve the level of the molecul..
A solution was prepared to have a density of 1.20 g/mL and a molality of 2.24 m at 22oC. The Mm of the solute is 63.10 g/mol. (a) What is the molarity of the solution?
What common mono-positive ions will coprecipitate with barium sulfate in the determination of soluble sulfate
A solution is prepared by dissolving 285 g of sucrose (C12H22O11) in 624 g of water. What is the vapor pressure of this solution at 30°C? (The vapor pressure of water is 31.8 mmHg at 30°C.)
Silver chloride crystallizes with the sodium chloride (rock salt) structure. The length of a unit cell edge is 555 pm. What is the density of AgCl? Show all works.
Calculate the Ki for a competitive inhibitor whose concentration is 6.5 x10-5 M that increases the Km of the substrate by 24.5%.
Suppose that you wished to prepare copper(II) carbonate by a precipitation reaction involving Cu2+ and CO3^2-. Select all of the pairs of reactants that could be used as solutes
if the activation energy is 55kJ/mol, determine the rate constant at 26 celcius. dinitrogen tetroxide decompses to nitrogen dioxide with a rate constant
Which radioactive decay particle poses the greatest risk if it is external to the body? Why? 2- Which is safer, an isotope with a short half-life or one with a long half-life?
For your cereal sample, you added the same volume of sodium acetate that you added to your standards and solution unknown. b) You forgot to add hydroxylamine hydrochloride when you prepared the standards
Iodobenzene ( C6 H5 I, bp 188 C) Steam distills at 98.2 C. How many molecules of water are required to carry over 1 molecule of iodobenzene. how many grams of water per gram of iodobenzene
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