If given the pKaand pH of an acid solution, calculating the percent of the acid that is dissociated is straightforward. Sample Dissociation Calculation A weak acid, HA, has a pKaof 4.756. If the solution pH is 3.85, what percentage of the acid is dissociated? First, convert pKato Kaand ...
Use the buffer equation to determine the pH of an acidic buffer solution, given certain acid-base concentrations. The Henderson-Hasselbalch equation is as follows: pH = pKa + log ([A-]/[HA]), where "pKa" is the dissociation constant, a number unique to each acid, "[A-]" represents t...
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How to convert among different water hardness measures: Water with hardness of 25 ppm = 25 mg. of hardness-causing minerals per liter of water. Grains of Hardness per Gallon GPG x 17.1 = Water Hardness in PPM Total Water Hardness in mg/L / 17.1 = GPG Total Water Hardness in PPM / 17....
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The pentose phosphate pathway converts glucose to the ribose-5-phosphate needed for DNA synthesis. What other pentose phosphate pathway product is required for DNA synthesis? What effect will low fructose-2,6-bisphosphate and high ATP have on glycolysis? a. It will shut glyco...
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customers looking for fluorescent dyes. For example,BODIPY™ FLdyes have unique hydrophobic properties and a relatively long excited-state lifetime.Oregon Green™dye, with a pKa of 4.6, can be used to monitor pH change.Cascade Blue™dye shows less spectral overlap with ...
Dilution makes an acidic solution more alkaline and an alkaline solution more acidic. To work out the pH effect of dilution, you determine the concentration of hydrogen ions and convert it to pH using a simple working formula.
The fluorescence ratio at 339/351 nm as a function of pH shows a sigmoidal relationship between monomer and dimer populations, with a pKa of dimerization at pH 6.5 (ref. 33). In contrast to NTwt, the measured ratio for the novel mutant NT* corresponds to a monomer over the whole pH ...