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Determine the pH change when 0.092 mol NaOH is added to 1.00 L of a buffer solution that is 0.457 M in HNO2 and 0.356 M in NO2-.
pH after addition ? pH before addition = pH change = ???
This leaves the aspartic acid amine group and the side chain carboxylic acid functional group of aspartic acid. Therefore aspartame will have an isoelectric point at a pH between the pKa values of these functional groups
A buffer contains 0.16mol of propionic acid (C2H5COOH) and 0.17mol of sodium propionate(C2H5COONa) in 1.20 L. 1)What is the pH of this buffer?
The photochemical reaction of 2,4-dimethylpentane with molecular chlorine affords a mixture of monochlorinated alkyl halides. Draw teh structures of these products and predict the molar ratio when the reaction is run at 25C
Name those that have a trisubstituted ring where the methyl gorups are oriented Ortho for 3 different isomers.
A balloon containing 6.40 g of nitrogen, N2, has a volume of 5.00 L. What mass of hydrogen, H2, must be added to the balloon to expand its volume to 11.0 L
Peptide hormones must bind to receptors on the extracellular surface of their target cells before their effects are communicated to the interior. In contrast, receptors for hormones such as estrogen are intracellular proteins. Why is this possible..
(a). What is the trend in electronegativity going from left to right in a row of the periodic table? (b) How do electronegativity values generally vary going down a column in the periodic table?
On average, what percentage of random rolls of three (3) regular playing dice should result in a combined value of 5
List and describe at least three prokaryotic cellular features that could be targeted in this way to inhibit or kill a bacterial pathogen.
The pH of an aqueous solution containing only a monoprotic weak acid has a pH of 4.1. What is the concentration of hydronium ion, H3O+, in the solution? (a)2 x 10?3 M (b)2 x 10?4 M (c)8 x 10?4 M (d)8 x 10?5 M (e)0.61 M
Determine the volume (in mL) of 0.00437 M cesium hydroxide (CsOH) that must be added to 81.4 mL of 0.0282 M hypochlorous acid (HClO) to yield a pH of 6.70.
Write out the additional equations you would need to consider. d. Confirm that the number of equations is equal to the number of unknowns.
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