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Calculate the pH during the titration of 20.00 mL of 0.1000 M C6H5COOH(aq) with 0.1000 M NaOH(aq) after 19.54 mL of the base have been added. Ka of benzoic acid = 6.5 x 10-5.
A disulfide bridge forms between two cysteine residues. d. Disulfide bridges can exist between two amino acid residues on the same chain. e. Disulfide bridges are formed by an irreversible oxidation reaction.
what is the purpose of placing a lead apron on a person who is receiving routine dental X-rays? d)why are the walls in a radiation lab built of thick concrete blocks
What is the density of a block of unknown material with a mass of 18.63-g if the dimensions are.
at room temperature more of the collisions have sufficient energy to produce a reaction. the piece of zinc needs to be bigger at 4 deg c.
What is the average speed of the sprinter if A sprinter set a high school record in track and field, running 200. M in 22.0s .express your answer in kilometers per hour?
On a cold dry morning after a frost, the temperature was -5C and the partial pressure of water in the atmosphere fell to .30 kPa. Will the frost sublime? What partial pressure of water would ensure that the frost remained?
Discuss the merits and disadvantages of dispensing a drug as a reacemic mixture or as a single enantiomer.
In a graph(Energy (kj/mol)) the first five ionization energies of an atom are IE1, IE2, IE3, IE4, and IE5. what is the element symbol and its complete electron configuration for
The best means of personal protection from radiation for emergency responders is the implementation of three basic principles: time, distance and shielding.
How many glucose molecules does a fat cell, which has a diameter of 2.47 micrometers, contain when its internal glucose concentration is 1.47 mM
A solution is made witmlh 20.2ml of CH3OH ( density= 0.782g/ml), dissolved in 100.ml of water (density = 1.00 g/ml). Calculate the concentration in the units of:
Calculate the temperature (K) at which the equation as written is at equilibrium. Express your answer to three significant figures.
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