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Given stock solutions of 3 M Potassium Acetate and 500 mM EDTA, and a jar of solid Tris powder (molecular mass = 121 g/mol), how much of each component (including water) do you need to make 200 mL of a solution of 75 mM Potassium Acetate, 20 mM EDTA, and 100 mM Tris? Assume the density of Tris powder is 1 g/mL.
Draw the structure of the major organic product you would expect from the reaction of 1-bromopropane with NaCN.
Desribing molecular forces of C5H6O, CH2=CH-CH=CH-CH=O, THREE double bonds. We are asked to describe the bond and angle terms of this structure.
Citric acid is a triprotic acid with pKa1=3.15; pKa2=4.77; pKa3=5.19. Calculate the concentrations of all species in solution.
The balanced reaction has a -2217 kJ. If a steak must absorb 7.2 * 10^-4 kJ to reach a perfect medium rare and only 15% of the heat produced by the barbeque is actually absorbed by the steak, what mass of H2O is emitted into the atmosphere when th..
A component of a protein called serine has the following percent composition by mass: 34.95% C, 6.844% H, 46.56% O, and 13.59% N. It also has an approximate molar mass of 100 g/mol.
Combining aqueous solutions of BaI2 and Na2SO4 affords a precipitate of BaSO4. Which ion(s) is/are the spectator ions in the reaction
If antique brass is 30.0% zinc and 70.0% copper, how many grams of antique brass can be made from 18.0 grams of zinc and 35.1 grams of copper
Which gas has molecules with the greatest average molecular speed at 25°C. A) CH4 B) Kr C) N2 D) CO2 E) Ar
what is the ph of a solution prepared by mixing 25.00 ml of a 0.10 m solution of the weak acid ch3co2h with 25.00 ml of
A 25.264 g cube of aluminum is cooled to a temperature of -15.26*C. If it's placed in 250.00g of water at 35.00*C, what would the final temperature of the aluminum and water be when the system comes to equilibrium? Assume that no heat is lost.
use the henderson-hasselbalch equation to perform the givennbsp calculations compute the volume of the 0.500 m acetic
What is the maximum number of electrons in an atom whose highest-energy electrons have the principal quantum number n=5
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