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You are given a stock solution of EDTA at a concentration of 5mM, how would you dilution of EDTA with a final concentration of 5µM in a final volume of 250mL? You need to prepare a stock solution of medium for your culture cells, which usually includes liquid salt solution and bovine serum. Your liquid salt solution is supplied in a 10X concentration, and you need to dilute it to 1X for use. You also need to add 100% fetal bovine serum for a final concentration of 10%. How would you make up 5 liters of this culture media using water as your solvent?
Calculate the pH of the solution, taking into account the activity coefficients for H+ (yH+ = 0.933) and IO3- (yIO3- = 0.928). Assume yHIO3 = 1. (Hint: quadratic)
a toothpaste contains 0.24 by mass sodium fluoride naf and 0.30 by mass of triclosan c12h7cl3o2. the mass of one tube
What is the sum of the coefficients when the following equation is balanced using the lowest, whole numbered coefficients
The reference electrode is attached to the positive terminal of the potentiometer, and the silver electrode is attached to the negative terminal. The solubility constant of TlBr is Ksp = 3.6 × 10-6 and the solubility constant of AgBr is Ksp = 5.0 ..
At 25 °C only 0.0210 mol of the generic salt AB3 is soluble in 1.00 L of water. What is the Ksp of the salt at 25 °C
how many grams of sodium chlorida are in 100 ml of water if the vapor pressure of the solution is 630 torr 20 c? given
When heated, ammonium carbonate decomposes as follows. NH4CO2NH2(s) ->2 NH3(g) + CO2(g) At a certain temperature the equilibrium pressure of the system is 0.318 atm. Calculate KP for the reaction.
a hypothetical metal has a face-centered cubic unit cell and a density of 6.12 gcm3. the molar mass of the metal is
given that the solubility of o2 in water at 0 degrees c is 14.7ppm calculatenbspa the concentration of dissolved o2 in
The Ka of acetic acid is 1.85 x 10-5. What would be the pH of a buffer prepared by mixing 50.0 mL of 1.0 M potassium acetate with 50.0 mL of 1.0 M acetic acid?
A solution contains either cr^3+ or Ni^2+ ion. describe a reaction with a single reagent that will identify which ion is present
what volume of a 0.400 mM solution of nickel (II) acetate (FW 247.7 g/mol) is required to provide 20mg of nickel
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