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An optically active compound A, C6H10O2, when dissolved in NaOH solution, consumed one equivalent of base. On acidification, compound A was slowly regenerated. Treatment of A with LiAlH4 in ether fo
Provide a structure for the following compound: molecular mass 101; IR: 3397, 3200, 1655, 1622 cm-1; 13C NMR: ? 27.5, ? 38.0 (weak), ? 180.5 (weak).
A mixture of nitrogen and oxygen gas is collected by displacement of water 30 degrees celsius and 700 torr Hg pressure. If the partial pressure of nitrogen is 550 torr Hg, what is the partial pressu
Why does EDTA^4- cease to function as chelating ligand if acid is added to the solution
A sample of gas has a volume of 35 liters and a temperature of 27 celsius. With the pressure remaining constant, the volume is raised to 50 liters. What is the new temperature
A sample of gas has a temperature of 0 celsius and a volume of 453 m. At constant pressure, the temperature is raised to 100Celsius. What is the new volume
Why can NH3 function as a ligand with Ni^2+ While NH_4 + cannot function as a ligand with Ni^2+
If the sample of the complex ion compound that you prepared had not thoroughly dried, but contained traces of water or ethanol would this make your value of x too high or too low? Or would it not af
When doing column chromatography using a silica as a solvent. got two bands when separating blue dextran...but unfortunately cannot remember the colors of those bands
A given mass of air occupies 900 ml at one atmosphere (760 mm) of pressure. What pressure must be applied to reduce the volume to 700 ml at constant temperature
An electron in an atom of Lithium sees an effective nuclear charge of 1.91 at a radius of 152pm. An electron in an oxygen atom sees an effective nuclear charge of 4.45 at a radius of 73pm. How much
A single atom of an unknown element travels at 15% the speed of light. The de Broglie wavelength of the atom is 1.06x10^-16m. What element is this
The resulting solution required 12.21 mL of 0.1211 M NaOH to back titrate the excess HCl. What was the percent CaCO3 in the unknown? Report your answer to two (2) decimal places
A 0.0560-g quantity of acetic acid is dissolved in enough water to make 50.0 mL of solution. Calculate the concentrations of H+, CH3COO-, and CH3COOH at equilibrium. (Ka for acetic acid = 1.8 x 10^-
A sample of gas at 0 celsius has a pressure of 760 mm and a volume of 2 liters. When the volume is increase to 8 liters, what will new pressure be at 0 celsius
What mass of lead sulfate is formed in a lead-acid storage battery when 1.41g of Pb undergoes oxidation
A student added a total of 15.00 mL of 0.5241 M HCl to 1.4881 g to of an unknown which contained CaCO3 (molar mass = 100.09 g/mol). The resulting solution required 12.21 mL of 0.1211 M NaOH to back
What are the standard conditions of temperature and pressure, and why is it important to have a set of standard conditions
The resulting solution required 12.36 mL of 0.1211 M NaOH to back titrate the excess HCl. What was the percent CaCO3 in the unknown? Report your answer to two (2) decimal places
The measured boiling point of the solution was 65.46 °C. Calculate the molecular weight of the unknown substance.
Draw a representation of the 3-D structure of the anion, including only the bonding-pair electrons, and any sulfur lone-pair electrons. What is the orientation of the oxygen atoms with respect to eac
The rate expression for a particular reaction is rate=k[A][B]^2. If the initial concentration of B is increased from 0.1M to 0.3M, the initial rate will increase by which of the following factors
use the appropriate standard reduction potentials to calculate the value of K at 25 degrees Celcius for:
The solubility of barium sulfate varies with the composition of the solvent in which it was dissolved. In which solvent mixture would BaSO4 have the lowest solubility
A chemist needs to determine the concentration of a solution of nitric acid, HNO_3. She puts 865 mL of the acid in a flask along with a few drops of indicator.