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modify the 3 molecules so that they show the form that is dominant at physiological pH: formic acid, acetylsalicylic acid (aspirin), and citric acid
How much helium gas would it take to ?ll a gas balloon with a volume of 1020 cm 3 when the temperature is 39.0? C and the atmospheric pressure is 724 mm Hg? Answer in units of mol.
calcium oxide or lime is produced by the thermal decomposition of limestone in the reaction cacomc062-1.jpgs
What is the molality of a solution formed by dissolving 1.70 mol of KCl in 15.0 mol of water (MM of water = 18.02 g/mol),
Given that the vapor pressure of pure n-hexane and pure h-heptane at 25 °C are 151.4 mmHg and 45.62 mmHg respectively, calculate the total vapor pressure above a solution containing only n-hexane and n-heptane in which the mole fractio n of n-hexa..
The second law states that the entropy of the universe (system and surroundings) increases in a spontaneous process : delta Ssyst + delta Ssurr is greater than or equal to 0.
A home swimming pool contains 155 m3 of water. At the beginning of the swimming season, the water must be heated from 18 to 32°C. How many joules of heat energy must be supplied
The balences in the lab can weigh a maximum of 220.000 g at once. if a beaker has a mass of 86.4329 g, what is the maximum volum of water
a bicycle tire is filled with air to a pressure of 100 psi at a temperature of 100 degrees c. riding the bike on
SnI4 is soluble in acetone. What does this tell you about the ionic nature of this compound? Is the charge on the tin is actually +4? What was the effect of adding KI to the acetone solution?
The highly reactive OH radical (a species with an unpaired electron) is believed to be involved in some atmospheric processes. The bond enthalpy for the oxygen-to-hydrogen bond in OH as 460 kJ/mol. What is the longest wavelength (in nm) of radiati..
Assuming the structures above gave molecular ion abundances of 12, 70, and 23(dexchlorpheniramine, 9-aminoacridine and pilocarpine, respectively), what abundances would you expect for the M+1 and the M+2 peaks for each structure?
Determine symmetry types for all normal modes of vibration for NH3, which has trigonal pyramidal geometry C3v. Use the internal coordinates analysis method, i.e. 3 bond stretching, deltaD
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