Explain the pka for the alpha-carboxylate group

Reference no: EM13491531

Which of the following peptides has a pI close to 5.5? Assume that the pKa value of the alpha-amino group is 9.6 and the pKa for the alpha-carboxylate group is 2.3. A. Ser-His-Arg-Asn B. Val-Thr-Gln-Tyr C. Asn-Cys-Ala-Gly D. Arg-Ile-Asn-Arg E. Asp-Ile-Gln-Asp

Reference no: EM13491531

Questions Cloud

Explain temperature of the resulting solution was recorded : A 100.0 mL sample of 0.300 M NaOH is mixed with a 100.0 mL sample of 0.300 M HNO3 in a coffee cup calorimeter. Both solutions were initially at 35.00°C and the temperature of the resulting solution was recorded as 37.00°C

Explain product has small amount of side products : product has small amount of side products. C. product was not dried completely before taking the melting point. D. product was very cold when the student started taking the melting point. E. product was not recrystallized successfully.

Find the volume of water beneath this rectangle : The depth of the ocean is sometimes measured in fathoms (1 fathom = 6 feet). Find the volume of water (in cubic meters) beneath this rectangle

Determine the weight of this diamond in pounds : The largest diamond ever found had a size of 3106 carats. One carat is equivalent to a mass of 0.200 g. determine the weight of this diamond in pounds

Explain the pka for the alpha-carboxylate group : Which of the following peptides has a pI close to 5.5? Assume that the pKa value of the alpha-amino group is 9.6 and the pKa for the alpha-carboxylate group is 2.3. A. Ser-His-Arg-Asn B. Val-Thr-Gln-Tyr C. Asn-Cys-Ala-Gly D. Arg-Ile-Asn-Arg E. Asp..

What minimum speed must the rocket have : You are part of a search-and-rescue mission that has been called out to look for a lost explorer. What minimum speed must the rocket have

Find the mass of one cubic meter of water in kilograms : assuming that water has a density of exactly 1 g/cm3. Find the mass of one cubic meter of water in Kilograms

Define what is the pka for the pyridium cation : What is the pKa for the pyridium cation. Pyridine + H2O Pyridium cation + OH- Kb = 1.71 *10^-9 A. pKa for the pyridium cation = 3.9 B. pKa for the pyridium cation

Explain the calorimeter containing a sample of water : A student performs a series of calorimetry experiments. She determines the calorimeter constant (Ccal) for her coffee cup calorimeter. She pours a 50.0 mL sample of water at 345 K into the calorimeter containing a 50.0 mL sample of water at 298 K.

User Account

All Pages