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For the peptide sequence listed below, draw the structure of the predominant ionic species present at pH 7.4 (the pH of your blood). Show stereochemistry where relevant.
Peptide sequence: QWIKPT
Question- What is the pH of a buffer prepared by adding 0.405mol of the weak acid HA to 0.608mol of NaA in 2.00 L of solution. The dissociation constant Ka of HA is 5.66×10?7.
Is the market for Quotes should support your discussion instead of answering question an oligopoly market or a monopolistic ally competitive market
1 some bacteria are able to harvest light of 1000 nm wavelength. a what is the energy in kilojoules of a mole of 1000
Problem- The relative humidity of air equals the ratio of the actual partial pressure of the water in the air to the equilibrium vapor pressure of water at the same temperature.
(a) What neutral noble-gas atom has the same electron configuration? (b) What is the monatomic ion with a 1- charge that has this configuration?
Write the structures of all the alkenes formed from the E2 elimination of HX (dehydrohalogenation) of the compounds using alc KOH and heat. Identify the major product.
Consider that sodium hydroxide is added to acetic acid (CH3COOH). What is the direction of equilibrium and by how much. Pka of Sodium Hydroxide
56.9 mL of water is added to 24.9 mL of 0.125 M KOH solution. What is the new molarity?
The Ksp value for ferrous hydroxide is 1.6 x 10/\-14. Calculate the molar concentration of ferrous ion (Fe2+) in an aqueous solution that has been buffered to maintain a pH of exactly 10.00 and is saturated with Fe(OH)2.
An experiment shows that a 248 ml gas sample has a mass of 0.435 g at a pressure of 747 mm Hg and a temperature of 26 c. What is the molar mass of the gas?
The zinc chloride battery operates on the reaction Zn + Cl2 à ZnCl2. It has been suggested as a possibility for exploitation as a source of power
Problem- The Kb for an amine is 7.280x10^-5. What percentage of the amine are protons red if the pH of a solution of the amine is 9.408? Assume that all OH- came from the reaction of B with H2O
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