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How would you separate laurie acid from alpha-naphtol? lauric acid is soluble in cyclohexane, but what would be done after this is added? Decanting then heating?
as we know many volatile substances are present in earths atmosphere in trace amounts. the given quantities of these
What is ?, the electromotive efficiency to three significant figures?? Open the hint panel below for the definition of electromotive efficiency. (d) What is the pH of an unknown that gives a reading of 19.6 mV with this electrode at 30°C?
Assume that the density of the mixed solutions is 1.00 g/mL, that the specific heat of the mixed solutions is 4.18 J/(g celcius), and that no heat is lost to the surroundings. The deltaHrxn for the neutralization of NaOH with H2SO4 is -114 kJ/mol ..
if the total amount of energy emitted by a carbon sample is 1.98x10^5 J, determine the number of carbon atoms present in the sample, assuming that each atom emits one photon
express the velocity of the electron in the Bohr model for fundamental constants, the nuclear charge Z, and the quantum number n. Evaluate the velocity of an electron in the ground states of He+ ion and U91+.
The major product of the acid-catalyzed dehydration of heopentyl(2,2-dimethyl-1-propanol) has a different carbon skeleton than that of the starting alcohol
what is the equilibrium concentration of the hydroxide ion (OH-) in the water? Please show formulas used, your answer with units and calculations as text below or an attached file.
Calculate the pH at the beginning of a titration of 50.00 of 0.005M HA (Ka=2.0*10^-2) with NaOH solution. If the quadratic equation is assumed to be accurate
at a temperature of 25 degree celsius and a pressure of 757 mm hg the product gas h2 is collected over h2othen
If the mass of an empty weighing jar is 23.4568 g and the mass of the jar with the metal inside is 36.8320 g, and the volume in the graduated cylinder increases from 5.70 mL to 12.30 mL, calculate the density with uncertainty. The uncertainty for ..
What is the maximum number of Cs+ ions that can be produced per joule of energy absorbed by a sample of gaseous Cs atoms
determine the trend in sizes of the ions o2-n3- f- and also explain why does the trend exist? also describe which of
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