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How can you find the pI of an amino acid when there are four ionizable groups on the same molecule?
Hydrobromic acid reacts with potassium carbonate to form potassium bromide,carbon dioxide , and water. Barney the incompetent lab tech accidently knocked a flask containing 255ml of 0.500 M hydrobromic acid onto the floor, and now he has to clean ..
From the heats of reaction as given 3O2(g) ---> 2O3(g) DH = +284.6 kJ, 2H2(g) + O2(g) ---> 2H2O(g) DH = -483.6 kJ
Calculate the wavelength (in nanometers) of a photon emitted by a hydrogen atom when its electron drops from the n = 4 state to the n = 1 state.
Calculate the total concentration of lead dissolved ([Pb]total) in a solution saturated with PbI2(s) and containing dissolved I- with a concentration of [I-] = 0.294 M. The solubility of lead is governed by the reactions shown below.
Draw 2 resonance structures for the anion -CH2CHO formed from ethanol. Show all valence electrons as bonds or lone pairs and indicate any formal charges.
The hydrogen gas generated is collected over water at 25.0°C. The volume of the gas is 295 mL measured at 1.00 atm. Calculate the number of grams of sodium used in the reaction. (Vapor pressure of water at 25°C = 0.0313 atm.)
The four major attractive forces between particles are ionic bonds, dipole-dipole attractions, hydrogen bonds, and dispersion forces. Consider the compounds below
calculate E when 830.0 g of CH3OH(g) completely reacts at a constant temperature of 300 K and constant pressure of 0.95 atm.
what problem might there be if you attempted to perform the kinetic experiment at -20 degrees celsius
Given that mercury has a Hvap of 59.11 kJ/mol and its normal boiling point is 356.7°C, calculate the vapor pressure in mm Hg at room temperature, 25°C.
If all the pyruvate is metabolized by the glyoxylate bypass (assume that 50% of the pyruvate enters in the citrate synthase reaction and 50% during the bypass), what would be the labeling pattern and its distribution in the oxaloacetate?
The ester ethyl p-nitrobenzoate is more reactive towards nucleophilic acyl substitution than ethyl p-methyoxybenzoate.
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