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Question- Calculate the pH of a solution made by mixing equal volumes of a solution of NaOH with a pH of 11.40 and a solution of KOH with a pH of 10.30. Assume the volumes are additive.
I want you to clarify the chemistry in this above problem.
Calculate the equilibrium constant for the following reaction at 298K and biological standard state: CH3CHO +NADH +H+ --> C2H5OH + NAD+ E° ?= -0.197V for the CH3CHO/ C2H5OH couple.
Caffeine is made up of 49.5% C, 5.2% H, 16.5%O, and 28.9% N. A solution made up of 8.25g of caffeine and 100.0 of benzene (d=0.887g/ml) freezes at 3.03C.
A solution is prepared by mixing 20.0 mL of 0.025 M BaCl2 and 200. mL of 0.075 M K2SO4. What are the concentrations of barium and sulfate ions in this solution. Assume only SO42- ions (no HSO4? ) are present.
The di basic compund B(pkb1=4.00),pkb2=8.00 was titrated with 1.00 M HCl. the intial solution of B was 0.100M and had a volume of 100.0mL. A) At what volumes are the two equivalence points?
Compared with the other dehydrogenase reactions of glycolysis and the TCA cycle, what is unique about succinate dehydrogenase? Explain why is bound FAD a more suitable electronacceptor in this case
A reaction in which A,B , and C react to form products is zero order in A , one-half order in B, and second order in C. Write a rate law for the reaction
What is the change in the measurement of the potential if a solution of 1.00x10-3 M NaF is exchanged for another solution of 1.00x10-4 M NaF?
Protons can be accelerated to speeds near that of light in particle accelerators. Estimate the wavelength (in nm) of such a proton moving at 2.90 X 108 m/s. (Mass of a proton=1.673 X 10-27 kg)
What is the limiting reactant? b) How many grams of magnesium hydroxide can be theoretically obtained? c) If only 2.009g of magnesium hydroxide are obtained, what is the percent yield of the reaction?
107X with abundance 54.34% and isotopic mass 106.9051 amu and 109X with isotopic mass 108.9048 amu. Use the given information to calculate the atomic mass of the element X to an accuracy of .001%
A patient weighs 165 pounds and is to receive a drug at a dosage of 45.0 mg per kg of body weight. The drug is supplied as a solution that contains 25.0 mg of drug per mL of solution. How many mL of the drug should the patient receive?
Question- If 3mol of FeCl3 are ignited in the presence of 2mol O2 gas how much of which reagent is present in excess and therefore unreacted
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