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Explain why emission spectrophtometry has the ability to be much more sensitive than absorbance spectroscopy
From the examples you state, select one acid, one base, and one salt and describe specifically how and where they are used in therapeutic processes. Define a buffer and explain how a buffer works.
What are the relative percentages of hydrogen cyanide (HCN) and cyanide ion in a dilute aqueous solution at pH
How many moles of water will be formed from 0.2 mole of CH4 reacting with enough O2. In this reaction CH4+2O2--->CO2+2H2O
What is the molarity of an HCl solution if 22.3 mL of the solution is required to react with 0.266g of Na2CO3?
Pure alpha-D-glucose has a specific rotation=+112.2 degrees and pure beta-D-glucose has a specific rotation=+18.7 degrees. What is the composition of a sample of a mixed alpha and beta-D-glucose that has a specific rotation=+83.0 degrees?
In the unbalanced reaction, Sn + HNO3 ---> Sn(NO3)2 + H2), 2.100 grams of Sn(NO3)2 was formed. How many grams of NO were formed and how many moles of HNO3 were reacted? (HINT: the coefficient of Sn is 3).
How many grams of KNO3 are needed to make 450 mL of a solution that is to contain 5.50 mg/mL of potassium ion? Calculate the molarity of the solution.
A 2.52- sample of a compound containing only carbon, hydrogen, nitrogen, oxygen, and sulfur was burned in excess to yield 4.36 of and 0.892 of as the only carbon and hydrogen containing products respectively.
You decide to use gel filtration. This works brilliantly and you determine that your protein is 80kDa at the same time. But wait! The gene that corresponds to HMD predicts a protein of only 38kDa. What are two potential causes of this discrepancy?
The sulfuric acid in a car battery has a density of 1.225 g/cm3 and is 3.75 M. What is the molality, mole fraction, and percentage of sulfuric acid by mass in this solution?
Calculate the concentrations of each ion present in a solution that results from mixing 49.6 mL of a 0.20M NaClO3(aq) solution with 25.3 mL of a .20 M Na2SO4(aq). Assume that the volumes are additive.
How much free energy is made available by the pH gradient and membrane potential for the transport of protons INTO the cell?
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