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a) Experimenta procedure, Part A.3 What is the technique for securing a piece of filter paper into a funnel for gravity filtration?
b) What is the technique for securing a piece of filter paper into a Buchner funnel for vaccum filtration?
c) The alum crystals are washed of contaminants with an alcohol-water mixture rather than with deionized water. Explain.
Calculate the vapor pressure of a solution made by dissolving 109 grams of glucose
Draw the Lewis Structure, and then specify the electron paor geometries for each of the following molecules or ions. Identify the hybridization of the central atom.
Calculate the equilibrium constant kc for a reaction occuring at a temp 0f -19 degree C and when delta G of 1.6 KJ/mol(use R =8.314 J/mol and 273 for kelvin conversion)
Outline a complet mechanistic sequence for the reaction of 2-bromoheptane with potassium 2-methyl-2-propoxide in 2-methyly-2-propanol solvent to form the three alkenes generated in the reaction
How many moles of bromine will react with 0.0500 mole of C2H2 in the reaction C2H2 + 2 Br2 -> C2H2Br4?
What mass of precipitate forms when 124.5 mL of 0.660 M NaOH is added to 517 mL of a solution that contains 10.9 g aluminum sulfate per liter?
write the net ionic equations for the reactions involved in the testing of each of the following anions
A ground state hydrogen atom absorbs a photon of light having a wavelength of 92.30 nm. It then gives off a photon having a wavelength of 1820 nm
A certain human gene was shown to have only 80% of its DNA sequence identical to that of an ape, but its corresponding protein sequence has 95% identity
How did I get a greater than 100% recovery of benzoic acid?, To quickly summarize, the lab dealt with isolating benzoic acid from a mixture via chemically active extraction.
Under what conditions can you ensure that substitution will predominate and under what conditions can you ensure that elimination will predominate?
A 13.4-g sample of CaCl2 is dissolved in 109 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution
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