If the blood pH decreases in an acidosis from 7.42 to 7.15, what is the change in [H+] in nmol.l-1?

Q: The enzyme urease is widely used for determining urea concentration in blood. The Michaelis constant…

A: Given Values: Km=2 mMk2=2.8×104 s-1V=3.49 M/secET=0.34 mM = 0.34×10-3 M

Q: For the equilibrium below, pKa1 = 7.9 and pKa2 = 10.1. At what pH is [HA-] equal to [A2-]?  H2A…

A: The pH of a solution is a measurement of its acidity or basicity. The pH scale ranges from 0 to 14.…

Q: What is the free Cu2+ (ag) concentration in a solution made up by mixing 50.0 mL of 0.100M Cu(NO3)2…

A: Step 1:Step 2: Step 3: Step 4:

Q: 22. If 75 mls of 0.02 M HCI is added to 425 mls of 0.5 M glycine buffer at pH 10.4, what is the…

A: Here given that, there is 425 mL of 0.5M glycine buffer at pH 10.4425 mL is equal to 0.425 L…

Q: Describe, stepwise, how you would prepare 0.5 L of a 0.15 M phosphate buffer, pH 12.5, using…

A: The equilibrium between the weak acid and its conjugate base allows the solution to resist changes…

Q: There are several different units that biochemists use to describe the concentration of a solution.…

A: BSA means bovine serum albumin. Given Values: Mol. wt of BSA = 80000 Dalton or 80 kD Weight of the…

Q: Assuming equal concentrations of conjugate base and acid, which one of the following mixtures is…

A: Buffers are the solutions that resist the change in pH after the addition of a small amount of acid…

Q: The pKas of two hypothetical organic acids are given below: ACOOH ----> ACOO- + H+ (pKa = 4.15)…

A: According to Henderson and Hesselbach equation.PH = Pka + log [A-] /[ HA].So if the acid is soluble…

Q: calculate the pH of a 0.10M solution of formic acid. the Ka of formic acid is 1.8x10^-4

A:

Q: What are the components of a lysine buffer at pH 9.2? Refer to the following forms of lysine: A H D…

A: Lysine is a basic amino acid with an amino group in its side chain. Lysine is an important amino…

Q: For the equilibrium below, pKa₁ = 7.9 and pKa2 = 10.1. At what pH is [HA] equal to [A²-]?

A: pH of any acid or base tells us its hydrogen ion concentration.PKa- it is that pH when the 50%…

Q: When 177. g of glycine (C₂H, NO₂). point of pure X. On the other hand, when 177. g of ammonium…

A: Approach to solving the question:Rational Detailed explanation:To solve this problem, we need to…

Q: In this problem consider how Glycine's charge changes with pH. You can find the pKas for the alpha-…

A: Glycine is the smallest of the twenty amino acids found in proteins. It has a simple structure with…

Q: In vitro experiments are conducted at pH = 7.4 to simulate physiological conditions. A phosphate…

A: (a) 1.58 (b) 9.48 gramsExplanation:

Q: A monoprotic weak acid, HA, dissociates in water according to the reaction HA(aq) = H*(aq) + A¯(aq)…

A: A weak acid is an acid that undergoes partial dissociation and produces proton and a conjugate base.…

Q: consider pyruvic acid with Ka = 1.4x10^-4. what initial molarity of pyruvic acid would be needed to…

A: The acid dissociation of pyruvic acid can be written asCH3​COCOOH(aq)→CH3​COCOO−(aq)+H+(aq) GivenpH…

Q: What is the isoelectric point of HPY? 5.70 6.15 6.875 7.60 8.05

A: Isoelectric point (pI) is the pH at which a species (here a tripeptide) have 0 charge (i.e.…

Q: The standard enthalpy of formation of ammonia at 25°C is -46.3 kJ/mol. Estimate the N-H bond…

A: Step 1: Step 2: Step 3: Step 4:

Q: Calculate the theoretical pH of a Tris buffer (pH 8.0) at 0 ºC. Assume that room temperature is 22…

A: pH = pka + log(c_base/c_acid) at 25°:   pH = -log(1.76*10^-5) + log(0.117/0.213)

Q: What volume of 0.1M NaOH (reagent) needs to be added to increase your 7.5 pH (buffer) by 0.5 pH…

A: The buffer is a species which resist any change in pH on adding small amounts of an acid or base in…

Q: Calculate the number of grams needed to prepare 100 mL of a 0.20 M solution of cobalt sulfate…

A: 1 mole of a substance is equal to that substance's Molecular weight The molecular weight is cobalt…

Q: A protein gives, under conditions of buffer composition, pH, and tem- perature that are close to…

A: Proteins are composed of the amino acid chain. Multimeric proteins contain multiple subunits that…

Q: 2.5 2 1.5 1 0.5 0 Mike has determined that enzyme he is attempting to purify has an isoelectric…

A: The isoelectric point (pI) of a protein is the pH at which the net charge of the protein is zero. As…

Q: amino glycine pKa is 2.4, 9.8 Calculate the most effective buffering range. if there is two pka,…

A: The amino acid is the smallest monomer of the protein, which acts as a buffer system.

Q: 1. If 100 mls of 0.05 M NaoH is added to 700 mls of 0.15 M glycine buffer at pH 9.4, what is the…

A: Amino acids are biomolecules that have an ionisable amino group, an ionizable carboxyl group and an…

Q: The isoelectric point of eIF4a is 5.02. Students are given a sample of cell lysate containing eIF4A…

A: Ion Exchange Chromatography (IEC) is a chromatography technique whose ability to separate analytes…