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Use Henderson-Hassalbach equation. The pKa of Tris-HCl is 8.1. After you have added 1 N HCl to adjust the pH of the Tris solution to 8.1, what is the ratio (in mmols) of Tris to Tris-HCl in the resulting buffer solution?
How many Valence electrons, bonding electrons, and lone pair electrons are present
In the laboratory you dissolve 15.4 g of zinc acetate in a volumetric flask and add water to a total volume of 500 mL.
If 2.50 g of glucose (C6H12O6) are dissolved in 1.00 x 102 mL of solution, calculate the molarity of the glucose solution.
What characteristic H NMR absorptions would be expected in the aliphatic region for 9-hydroxyfluorene
When M2S3(s) is heated in air, it is converted to MO2(s). A 3.700-g sample of M2S3(s) shows a decrease in mass of 0.207 g when it is heated in air.
How much heat is liberated at constant pressure if .889 g of calcium carbanate reacts with 43.9 ml of .756 M hydrochloric.
With acid-catalyzed condensation of a molecule with two aldehyde groups that is suitable for forming 5- or 6-membered rings, are both carbonyls protonated right away at the same time
Important information about Solution Concentrations, Find the concentration of 500mg of alltrans retinol 0.1% per 1 ounce of solution.
Give two reasons why cyclohexane adopts the chair conformation rather than a planar structure
Which of the amino acids, threonine and leucine, would you expect to find on the inside of a globular protein and which would you expect on the outside
Aqueous sulfuric acid will react with solid sodium hydroxide to produce aqueous sodium hydrogen sulfate and liquid water . Suppose 3.92 g of sulfuric acid is mixed with 2.22 g of sodium hydroxide.
An aerosol spray can with a volume of 350. mL contains 2.29 g of propane gas (C3H8) as a propellant. (a) If the can is at 25°C, what is the pressure in the can? (b) What volume would the propane occupy at STP?
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