Which is the stronger acid: ) Benzoic acid with a Ka of 6.5 x105 or hydrocyanic acid with a Ka of 4.9 x 10-10?

Q: A solution is made by dissolving 9.5 g of sucrose, C12H22O11 (molar mass 342.3 g mol-1) in water to…

A: Molarity of the solution is defined as the mole of solute, which is dissolved in the per (L) liter…

Q: None

A: Overview of pH Calculation with Amino Acids:Organic compounds known as amino acids have both…

Q: 2. You made a pH=9.8 buffer solution by mixing NaOH and glycine to give a solution that is 0.20 M in…

A: In order to solve (d), first we need to calculate (c). So, here is a brief and comprehensive…

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: The Ksp of lanthanum fluoride, LaF3, is 2.00 × 10-19. Calculate the molar solubility, x, of this…

A: Step 1: The maximum amount of substance that can dissolve in a given amount of solvent is…

Q: The normal freezing point of benzene (C6H6) is 5.5 °C. If 30.92 grams of the nonvolatile…

A:

Q: What is the total mass of oxygen in a single molecule of glucose? Express your answer in amu to 5…

A: Glucose is a carbohydrate, a monosaccharide. In most living cells, glucose is oxidised completely…

Q: 6 Concanavalin (ConA) is a 25.5KDa protein with pI of 4.7 and optical absorbance (A 0.1% 289) of…

A: Proteins are polymers of amino acids with specific molecular weight and pI (isoelectric point, pH at…

Q: Calculate the molality and boiling point of an antifreeze solution that is 50.0% by mass of ethylene…

A:

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: for 0.9% NaCl solution and 10% NaCl solution, which one has higher concentration of WATER?

A: When sodium chloride is mixed with water, it gives you a saline solution. It has a variety of…

Q: 75 mL of 0.2 M NaOH were added to 100 mL of 0.1M aspartate solution, pH=pl. What is the new pH? pKa…

A: The titration of the amino acid with a strong base like NaOH results in the loss of protons in a…

Q: None

A: Approach to solving the question: Detailed explanation:In a system, constituents are defined as any…

Q: The following amino acid is dissolved in solution at pH 7.4. HC H + CH CH₂ H H+ HC a. Which amino…

A: Dissociation of a weak acid is mathematically described by the Henderson-Hasselbalch equation:pH =…

Q: Draw an approximate titration curve of glycine. Label the approximate isoelectric point of the…

A: A titration curve is a graphical representation of the pH of a solution as a function of the volume…

Q: An ion-exchange chromatographic separation is performed using a diethyl-aminoethyl- (DEAE)-sepharose…

A: Proteins are composed of twenty standard amino acids attached together via peptide bonds. These…

Q: You are given two proteins with a pI of 4.5 and pI of 7.7. In an example of an anion-exchange…

A: Ion exchange chromatography is an isolation and purification technique used to separate biomolecules…

Q: A buffer that contains 0.132 M acid, HY, and 0.204 M of its conjugate base, Y, has a pH of 8.87.…

A: Step 1:Henderson-Hasselbalch equation ispH = pKa + log [HY][Y−]​...(1)  Given, pH = 8.87[HY] = 0.132…

Q: Refer to the titration curve in answering the questions: 13 12 11 10 9 8 7 6 5 4 3 0 2 4 6 ← 8 10 12…

A: A titration curve is used to study the pH changes that occurs during the titration of an acid with a…

Q: What is the pH of a solution of 4.1 x 10-8 M NaOH in otherwise pure water?

A: The objective of this question is to calculate the pH of a solution of sodium hydroxide (NaOH) in…

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: 2. 0.1 mL of a protein solution of concentration of 7 mg/mL was diluted to a total volume of 4.0 mL…

A: The c1v1 formula is a mathematical expression that is used to calculate the relationship between the…

Q: 9. 1.4 g of glucose (C6H1206) is dissolved in 150 ml of water (final volume). What is the final…

A: Molarity can be calculated as : M = n/V where, M is the molality of the solution that is to be…

Q: Determine the number of atoms in 30.0 g of P, with the correct amount of sig figs.

A: One mol of any substance is equal to avogadro number of molecules or atoms. In such cases you are…

Q: Identify the conjugate acid-base pairs in the following reactions:    HNO2(aq)       +…

A: Acids are substances that give H+ ions.  The base is any substance that can accept a proton or…

Q: If I have a 20ml stock solution of BSA with a BSA concentration of 0.2%. How can I make two other…

A: The concentration of the stock solution of BSA is 0.2%. Percent solution is the mass of solute…

Q: A solution containing egg albumin (pl=4.6), B-lactoglobulin (pl=5.2), and chymotrypsinogen (pl=9.5)…

A: Column chromatography is a technique used for the separation of solutes present in the sample based…

Q: Refer to the following table below to answer the succeeding questions: Protein Isoelectric pH…

A: Two dimensional gel electrophoresis is an electrophoretic technique in which in the first dimension…

Q: Carbonic acid, H₂CO₃, undergoes the following acid base equilibria: H₂CO₃,⇌H⁺(aq) + HCO₃⁻(aq) ⇌…

A: The bicarbonate buffer system is an acid-base homeostatic mechanism involving the balance of…

Q: Refer to the following titration curve below: 13 12 11 10 7 6 5 4 4 6 8 10 12 14 16 18 20 22 24 26…

A: Iso electric point: the pH at which the Amino acid exists in a zwitter ionic state us called iso…

Q: A very weak acid has à Ka= 4.37 x M? (-) What is the [H+] of a solution of this acid that is 2.65

A: The acids are substances that can readily donate a proton. Bases are molecules that receive a…

Q: used as a what would be the ratio of conjugate base to weak acid in a pH 7.00 C Choose the on

A: Cysteine is a sulfur containing  amino acid. Given, pKa's of cysteine 1.92, 10.70 and 8.37 Amino…

Q: Sodium carbonate is a reagent that may be used to standardize acids in the same way that you have…

A: The objective of the question is to calculate the molarity of the sulfuric acid (H2SO4) solution…

Q: mixture of Alanine (pl 6.02), Glutamic Acid (pl 3.22), Glycine (pl 5.79), Lysine (pl 9.74) and…

A: As anion resin is positively charged, it attracts amino acids that have a negative charge. Proteins…

Q: Protein Solubility pll 3.5 4.5 6.5 7.5 Dilution Factor 5 5 50 50 Absorbance 0.098 0.027 0.028 0.032…

A: Protein solubility is defined as the concentration of protein in a saturated solution that is in…

Q: Consider the titration of 30.0 mL of 0.0700 M HONH2 (a weak base; Kb = 1.10e-08) with 0.100 M HI.…

A: pH is generally a measure of a solution is how acidic/basic water they are. The range normally…

Q: A 100.0 mL sample of 0.200 M aqueous hydrochloric acid is added to 100.0 ml of 0.200 M aqueous…

A: Step 1: Given the information:Two solutions are mixed:HCl(aq) + NH3(aq) → NH4Cl(aq)Volume of…

Q: The skeletal structures of the two amino acids, glycine and lysine, are given below along with the…

A: Amino acids are organic compounds that contain amine (-NH2) and carboxyl (-COOH) functional groups,…

Q: The solubility product of a metal hydroxide M(OH)2 is 8.65 × 10-6.  What is the molar solubility of…

A: Ionic molecules are formed by the loss and gain of electrons to form respective positive and…

Q: Acetic acid is the principal ingredient in vinegar as shown; that's why it tastes sour. At…

A: An acid dissociation constant (Ka) is the equilibrium constant for a chemical reaction which is…

Q: The isoelectric point (pI) or an amino acid with pKa's of 2.17, 9.00, and 11.67 would be?

A:

Q: In an experiment to determine the degree of saturation in 0.43 g of an unknown lipid, the following…

A: The fatty acids in triglycerides can have one or more double bonds in the hydrocarbon chain. Fatty…

Nucleotides

It is an organic molecule made up of three basic components- a nitrogenous base, phosphate,and pentose sugar. The nucleotides are important for metabolic reactions andthe formation of DNA (deoxyribonucleic acid) and RNA (ribonucleic acid). 

Nucleic Acids

Nucleic acids are essential biomolecules present in prokaryotic and eukaryotic cells and viruses. They carry the genetic information for the synthesis of proteins and cellular replication. The nucleic acids are of two types: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The structure of all proteins and ultimately every biomolecule and cellular component is a product of information encoded in the sequence of nucleic acids. Parts of a DNA molecule containing the information needed to synthesize a protein or an RNA are genes. Nucleic acids can store and transmit genetic information from one generation to the next, fundamental to any life form.