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Outline the steps necessary to properly prepare 100ml of TE buffer. Include the amounts of Tris-base and EDTA, and all steps necessary to adjust the pH, including when you add what bolumes of water. Tris-base has a molecular weight of 121 g/mol and will be very basic when it dissolves. EDTA's molecular weight is 372.2 g/mol.
At equilibrium, 0.11 mole of CO2 was present. Calculate the equilibrium constant Kc of this reaction.
What is the osmotic pressure of a solution made from dissolving 50.0g of glucose rm C6H12 O6 in 250mL of water at 36.0 C
The reactions occur in acidic solution. (Use the lowest possible coefficients. Omit states-of-matter in your answer.) (a) MnO4- + H2SO3 ? Mn2+ + SO42-
how many grams of sugar are in 15.0% concentrated solution with a total mass 125 g?
to prepare a 13.9 kg dog (assume volume of 13.9 L) for surgery, 0.0343 moles of an anesthetic was administered intravenously. The reaction in which the anesthetic is metabolized displayed a first half life of 132.5 minutes and a second half life o..
A sample of gas is collected over water at a temperature of 35.0C when the barometric pressure reading is 707 torr. What is the partial pressure of the dry gas, given PH2O = 42.2 torr?
The reduction reaction has the product 4-tert-butylcyclohexanol which is a mixture of cis and trans isomers. Methanol is the solvent, but I don't think that goes into the balanced equation.
What are the values of Ka and pKa for lactic acid? b. Calculate the pH of a .10M HCN solution, which has a Ka = 1.4x10^-9 at 25C. Assume that the dissociation of HCN is negligible compared to its initial concentration.
While using the Half Volume method, your solution was dark pink (you overshot the endpoint) and you added the unreacted acid to this solution
A 32.85-{g} sample of a solid is placed in a flask. Toluene, in which the solid is insoluble, is added to the flask so that the total volume of solid and liquid together is 54.00 mL. The solid and toluene together weigh 58.88 g. The density of tol..
Calculate the energy that must be transferred as heat to a van der Waals gas that expands reversibly and isothermally from Vi to Vf.
Determine how many of the isomers will have a parent name of heptane. (I know the answer is 3, but is there a formula to easily figure it out or how do you go about knowing when you've drawn enough molecules to determine
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