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How to prepare a buffer solution with a specific pH of 9.100 and total common ion concentration of .130 M, using a 1.0 M ammonium chloride and ammonia?
Interpret the infrared and NMR spectra of benzocaine. What is the structure of the precipitate that forms after the sufuric acid has been added
In the fumaric acid titration, at what volume of NaOH should the missing equivalence point show up
1) What is the overall charge state for the tetrapeptide DREAM at physiological pH. The pK values for N-terminal, C-terminal, side chain of asp, arg, glu are 9.0, 3.5, 3.9, 12.5, and 4.1
Calculate the percentage ionization of nitrous acid in a solution that is 0.222 M in nitrous acid (HNO2) and 0.278 M in potassium nitrite (KNO2). The acid dissociation constant of nitrous acid is 4.50 E -4. which E is an exponential of 10.
Calculate the overall energy change in kilojoules per mole for the formation of CaCL(s) from the elements. The following data are needed
In the chemical formula for alu, there are 12 water molecules present. It is also possible to prepare the anhydrous compound potassium aluminum sulfate. On the "molecular scale" describe how a crystal of alum differs from a crystal of potassium al..
The atmosphere slowly oxidizes hydrocarbons in a number of steps that eventually convert the hydrocarbon into carbon dioxide and water. The overall reactions of a number of such steps for methane gas is as follows
what mass of CH3CO2H is required to prepare 100.00ml of a 0.48M acetic acid solution?
Calculate the mass in grams of iodine (I-2) that will react completley with 20.4g of aluminum (AI) to form aluminum iodide (AII3).
Draw molecular orbital energy diagram for CO and H3+. Find the bond order and reflect on the stability of the molecule. Also state whether they are diamagnetic or paramagnetic.
Problem- Using 25 mL volumetric flaks, prepare a minimum of 5 dilutions of the stock 250 ppm calcium solution to cover the range of 1-20 mg/L of calcium. Diluting to the mark with 0.50 M HCl.
The measured cell voltage is 0.0841 V and the Pt | H2 | H+ half-cell is the cathode. Standard reduction potentials are given on the next page. (a) Draw a diagram of the electrochemical cell, labeling all electrodes and solutions. (b) What is the p..
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