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What tecnhique is used to separate the active ingredient from each of these compounds: citric acid, sodium benzoate, polyethylene glycol, sodium saccharin?
mixed in water and treated with 53.20 mL of 0.1030 M I2 (253.80amu) according to the equation C6H8O6 (s) + I2 (aq) ----> C6H6O6 (aq) + 2HI (aq)
the pressure in an engine cylinder increases from 7.6 atm to 13 atm as the gas is compressed from 0.50 l to 0.10 l.
What is the maximum number of hybridized orbitals that can be formed by a nitrogen atom. I know the answer is 4 but I don't understand why.
a sealed flask contains 0.65 g of water at 28 circ rmc. the vapor pressure of water at this temperature is 28.36 rm
After you have added 1 N HCl to adjust the pH of the Tris solution to 8.1, what is the ratio (in mmols) of Tris to Tris-HCl in the resulting buffer solution
What volume of 5.00x10^-3 M HNO3 is needed to titrate 80.00 mL of 5.00x10^-3 Ca(OH)2 to the equivalence point
would the calculated value of k the true rate constant be in error if the concentration of dye was actually doubled the
An alkyne of six carbon atoms gives the same single product in its reaction either with BH3 in THF followed by H2O2 /OH-, or with H2O/Hg2
Draw the Lewis structure of [(CH3)3O]+ . Be sure to show all atoms, bonds, lone pairs, and formal charges.
What can be said about the vibrational energy levels of the cabonyl group in a) ground electronic stateb) its excited electronic states
Firefly luciferase is the enzyme that allows fireflies to illuminate their abdomens. Because this light generation is an ATP-requiring reaction, firefly luciferase can be used to test for the presence of ATP
Calculate the final temperature of a mixture of 170.0 g of ice initially at -7.0 degrees C and 318.0 g of water initially at 94.0 degrees C.
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