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DNA molecules are connected via a 5'-3' phosphodiester linkage to ribose molecules. The phosphate group within this linkage is contains a negatively charged oxygen atom at a PH of 7. This gives DNA its charge.
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What is the charge of aqueous NaOH or lye?
Sodium hydroxide is an alkali; the pH of the solution is over 7.
How to calculate net charge of a peptide?
what to do look up the pK values for the different amino acids. identify R groups which have pKR values (ie can act as acis and bases) also locate the pK values for the N and C terminal groups as these contribute to charge determine if each group is either a proton donor or proton acceptor at pH 7 determine the charge on each group by looking at the structure take the sum of individual charge to obtain the net charge on the peptide what to do Look up the pK values for the different amino acids. Identify R groups which have pKR values (ie can act as acis and bases). Also locate the pK values for the N and C terminal groups as these contribute to charge. Next determine if each group is either a proton donor or proton acceptor at pH 7. Determine the charge on each group by looking at the structure. Finally take the sum of individual charge to obtain the net charge on the peptide. what to do Look up the pK values for the different amino acids. Identify R groups which have pKR values (ie can act as acis and bases). Also locate the pK values for the N and C terminal groups as these contribute to charge. Next determine if each group is either a proton donor or proton acceptor at pH 7. Determine the charge on each group by looking at the structure. Finally take the sum of individual charge to obtain the net charge on the peptide.
What are the pH levels What does each level represent?
The pH is the representation of acidity/alkalinity of a solution.A pH under 7 is acidic, a pH over 7 is alkaline; thr neutral point is at pH=7.
What best describes the pH number indicates about a solution?
pH is related to the activity of ions H+ in a solution. A pH under 7 is acidic, pH=7 is neutral and a pH over 7 is basic.
What is the midpoint of the pH scale?
The midpoint of the pH scale is 7.
Net charge of histidine in pH 1 3 5 11?
pK1 = 2.3, pKr = 6, pK2 = 9.7 (all approximate) at physiological pH, histidine has no net charge. at pH 1, below all pKas and charge is +2 at pH 3, amine group proton pops off, so +1 charge at pH 5, still below 6 and above 2.3 so +1 charge if had pH above 6, for instance... at pH of 8 net charge is zero, or neutral... such that it is neutral at physiological pH (a bit above a pH of 7) at pH 11, exceeds all pKas of amine, acid group, and R group. So net charge of -1 amine deprotonation, carboxylic acid deprotonation, and R group deprotonation happen pH 11 because it exceeds all pKs
What is the charge on the perchlorate anion?
The pH depends on the concentration (how much is dissolved in a given volume of water) Since it is a strong monoprotic acid the pH equals the negative logarithm of its molar concentration. A 1M solution has a pH of 0 a .1M solution has a pH of 1 and so on until a pH of about 7.
What is the dominant charge on the side group of Asp at pH equals 7?
-1
What is the charge of aqueous NaOH or lye?
Sodium hydroxide is an alkali; the pH of the solution is over 7.
How to calculate net charge of a peptide?
what to do look up the pK values for the different amino acids. identify R groups which have pKR values (ie can act as acis and bases) also locate the pK values for the N and C terminal groups as these contribute to charge determine if each group is either a proton donor or proton acceptor at pH 7 determine the charge on each group by looking at the structure take the sum of individual charge to obtain the net charge on the peptide what to do Look up the pK values for the different amino acids. Identify R groups which have pKR values (ie can act as acis and bases). Also locate the pK values for the N and C terminal groups as these contribute to charge. Next determine if each group is either a proton donor or proton acceptor at pH 7. Determine the charge on each group by looking at the structure. Finally take the sum of individual charge to obtain the net charge on the peptide. what to do Look up the pK values for the different amino acids. Identify R groups which have pKR values (ie can act as acis and bases). Also locate the pK values for the N and C terminal groups as these contribute to charge. Next determine if each group is either a proton donor or proton acceptor at pH 7. Determine the charge on each group by looking at the structure. Finally take the sum of individual charge to obtain the net charge on the peptide.
Is pH 7 a high pH?
no 7 is not a high PH. the Ph scale is out of 14 meaning 7 is neutral :)
What is acidic and alkaline in pH?
pH<7 -----> Acidic pH=7------> Neutral pH>7------>Basic or Alkaline
How are acid base and pH related?
pH<7 acid pH=7 neutral pH>7 base
What happens to the pH of a acid when it is neurtralised?
The pH of an acid will increase and it will be 7 or close to 7. pH= 7 is considered neutral and a pH under 7 is acidic and a pH above 7 is alkaline.
Which ranges on the pH scale are acidic basic and neutral?
pH 0 < acidic < pH 7 neutral = pH 7 pH 7 < basic < pH 14
What is the difference between pH 14 and pH 7?
pH is a scale from about 0 to 14 that measures how acidic or basic a solution is.A pH less than 7 is considered acidic, and acidity increases as the pH decreases.A pH greater than 7 is considered basic, and basicness increases as pH increases, up to 14.A pH of 7 is neutral.AnswerA pH of 14 is 107 times more basic than pH of 7.
If an atom has 5 protons and 7 electrons what is the charge of the atom?
its charge is 0. Protons have a positive charge, while electrons have a negative charge (neutrons have no charge at all). So ten protons will balance out ten electrons, making the net charge 0.
