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Question- My professor wants me to make a solution that is 50mM sodium phosphate, 300 mM NaCl and 5% DMSO at pH 7.5. How would I figure out how many grams/milliters of each chemical needed so that I could make this solution?
Please show your math and explain your work. It is not a question in the book, so I just need the full solution of deriving!
The collision (frequency) factor remains the same, by how much an enzyme lower the activation energy of the reaction in order to achive 1 x 10 ^5 fold increase in the reaction rate
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 amount of energy released per gram of hydrogennuclei reacted for the following reaction. the atomic
Explain what molar ratio of HPO4 2- to H2PO4 - in solution would produce a pH of 7.0? Phosphoric acid (H3PO4) a triprotonic acid has pKa values- 2.14, 6.86, and 12.4. Merely one of the pKa values is relevant here.
A 2.50 liter container is filled with 175g of Argon. If the pressure is 10.0 atm, what is the temperature.part B: If the temperature is 225 K, what is the pressure
A highly useful and general technique for synthesis of alcohols is the addition of grignard reagents to carbonyl compounds
"Given the following standard reduction potentials, E°redAl3+/Al = -1.66 V. E°redCr3+/Cr = -0.74 V.
A 1- flask is filled with 1.20 g of argon at 25 C. A sample of ethane vapor is added to the same flask until the total pressure is 1.25 atm.
What are the values of (i) the pressure, (ii) the molar fraction of benzene in the liquid phase, and (iii) the molar fraction of benzene in the vapor phase when 1/4 the initial vapor phase has condensed
Explain which of the following clusters of orbitals would form the shape either through the formation of a single molecule or by bonding to another atom of similar electronic geometry also results in an arrangement of orbitals that is possible wit..
If 3.55 g of CuSO4 are dissolved in 925 mL of 0.30 M NH3, what are the concentrations of Cu2+, Cu(NH3)42+, and NH3 at equilibrium Kf, Cu(NH3)42+= 1.1 x 1013 . Assume that most of the Cu2+ is converted to the complex since K is a very large number.
Using standard reduction potentials, calculate the delta G for the oxidation of ethanol using NAD+ as the oxidizing agent.
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