At pH=2.2, which of the following is true СООН COO CO0 CO0" H2N-CH H,N-CH H,N-CH CH2 pK2 H2N-CH CH2 CH2 pKR CH2 CH2 pK, CH2 CH2 CH2 COOH СООН СООН COO COO
Q: Rank the indicated hydrogens from most acidic to least acidic: III H2 H,c-Co CHa II O A) I > I| > II…
A: Compounds that are made up of carbon are known as organic compounds. They also possess oxygen and…
Q: 8 7- 6- 2- 1 405 180 225 270 315 [Substrate] (nM) 45 90 135 360 450 495 540 58! What are the units…
A: Solution Michaelis menten kinetics is one of the best models of enzyme kinetics. Value of…
Q: Indicate whether a solution will have more OH- or H+if the value of the solution is 10
A: The pH of the solution determines the acidity or basicity of the solution by measuring the molar…
Q: Alanine has pKa values of 2.4 and 9.9. Its isoelectric point, pI, is equal to____. A. 6.15 B. 23.76…
A: Amino acids contain an alpha-carboxylic acid group and an alpha-amino group. Every amino acid has…
Q: On the pH scale, where can you find very strong acids and very strong bases? Below 7 O In the middle…
A: pH is used to describe whether an aqueous solution is acidic or alkaline (basic) in nature. The pH…
Q: At pH=2.2, which of the following is true СООН ÇO0 Ç00 CO0 H,N-CH H3N-CH H,N-CH H2N-CH CH2 pK, CH2…
A: The given amino acid is glutamic acid. Glutamic acid is an acidic or negatively charged amino acid.…
Q: If an aqueous solution has a hydroxyl ion concentration of 1 x 10-6 M, what is the concentration of…
A: Water dissociates into hydrogen ions and hydroxyl ions and at neutral pH (pH =7) the numbers of…
Q: What are the pH values for the following solutions? (a) 0.1 MHCl (b) 0.1 M NaOH (c) 0.05 M HCl (d)…
A: pH is the scale used to specify the acidity or basicity of an aqueous solution. It is the negative…
Q: Water 1H2O2 is more polar than hydrogen sulfide 1H2S2. Explain.
A: Polarity is the separation of electric charge leading to a molecule or its chemical groups having an…
Q: A water (H20) molecules is
A: Under normal conditions, water exists as a liquid on the Earth's surface, making it invaluable for…
Q: он он CH, CH, CH NH O-C 0-CH, Identify/Name the noncovalent interaction between groups in the…
A: Solution " O " - Hydrogen bond It is primarily electrostatic force of attraction between…
Q: How many grams of calcium chloride (CaCl2; molecular weight = 111 g mole−1) would you dissolve in…
A: A chemical solution is made up of a solute and solvent such as the salt solution containing salt as…
Q: Which of the following solutions has the highest buffer capacity? K, of HCH;O=1.8x104 (а) 0.50 М…
A: Buffers are the solution that resists the change in pH after the addition of a small amount of acid…
Q: How much sodium formate (HCOONa, 68.0069 g/mol) do you need to add to 400. mL of 1.00 M formic acid…
A: Given: Volume of formic acid = 400. mL pH=3.500 Ka = 1.77 x 10¯4 To calculate: Mass of sodium…
Q: Guanosine (C10H13N5O5) in solution has a maximum absorbance at a wavelength of 275 nm. The molar…
A: The Absorbance of a molecule/substance is related to its concentration and the path length of the…
Q: Your instructor has given you a solution with 162.0 g of glucose (C6H1206) in one liter of water.…
A: 162.0 g of glucose C6H12O6 in H2O Number of moles of solute = given mass /Molar mass . Molar mass…
Q: How much water must be added to 300 mL of an aqueous solution of 0.2 M acetic acid in order to…
A: Given : 0.2 M acetic acid solution , volume 300 ml Let C1 = 0.2 M C2 = concentration of acetic acid…
Q: NH3 NH3 NH3 NH2 (CH2)4 (CH2)4 (CH2)4 (CH2)4 H,N-Co,H pKa, (2.2) pKaz (9.0) HN-co," pKaz H H (10.5) H…
A: Amino acids are organic compounds that constitute of an amino group –NH2, and carboxyl group –COOH,…
Q: Given: 2KI +Pb(NO3)2 --> PbI2 + 2KNO3. How many grams of lead (II) iodide are produced if 0.250…
A: 2KI +Pb(NO3)2 --> PbI2 + 2KNO3 Thus, 2moles of KI with 1mole of Pb(NO3)2 gives 1 mole of PbI2…
Q: Which of the following depicts the mild alkalosis? Select one: a. pH=7.33 Ob. pH=7.45 O c. H=7.65…
A: The collecting duct of kidney participates in reabsorption and secretion of selective ions into…
Q: Which of the following accurately describes the number of aluminum and oxygen atoms in Al203? A 3…
A: Al2O3 is an aluminum oxide that is a white odorless crystalline powder.
Q: What coefficient must be placed in the following blanks so that all atoms are accounted for in the…
A: As per the law of conservation of mass, mass can neither be created nor destroyed. This also applies…
Q: Soft drinks usually have a pH of approximately 3.1. What is the [H3O+] concentration in a soft…
A: Consumption of soft drinks is a very controversial issue for public health. Soft drinks contains…
Q: Calculate the concentration of Y4-ion in 0.0100 M EDTA solution at pH 6. α4 = 2.2 x 10-5 for pH 6.
A: Introduction Fraction of EDTA in the form of Y4- is given as αY4-= [Y4-][EDTA]
Q: a) Which pH (1, 7 or 10) would produce the following ionization states for lysine?Th pK of the…
A: The pKa of the ionizable groups of amino acids determine the net charge on the amino acid at a…
Q: At pH=2.2, which of the following is true COOH COO- Ç00 ÇO0* H3N-CH H,N-CH H&N-CH H2N-CH CH2 CH2 pK,…
A: The given amino acid is glutamic acid. Glutamic acid contains three ionizable groups in the form of…
Q: At pH 10, [OH-] is— 10 M 5 M 10-10 M 10-4 M 0.0000001 M
A: pH is the measure of the relative amount of free hydrogen and hydroxyl ions in the water. A pH of…
Q: The inverse logarithm, or -log, of [H3O*l][OH*l] = 10*14 is pH + pOH = 14 1. What happens to the…
A: Water has many unique properties that make it very special and important for life on earth. The…
Q: THE LEAST EFFICIENT BUFFER MIXTURE a. 0.001 M HCI & 0.001 M NaCI b. 0.1 M NH4CI & 1M NH4CI c. 1 M…
A:
Q: Please help me find the structure based on this IR graph and a boiling point of 90-100°C. 84 80 70-…
A: Different types of spectroscopy can be used to identify the structure of the unknown compound. Some…
Q: Why young people with anxiety attack can develop respiratory alkalosis? Which of the following…
A: We all know that the body continuously works to maintain blood's acid - base balance. This…
Q: Trans-oleic acid (18:1,D9) has a melting temperature of (44.5C) and cis-oleic acid (18:1,D9) has a…
A: Oleic acid is an 18 carbon long mono-unsaturated fatty acid which bears double bond at carbon number…
Q: Which of the following has the highest iodine content? Which of the following has the lowest…
A: Fatty acid: These are the most common lipids. Based on the type of bonds they are classified into…
Q: Why is the pH of a 0.1 M solution of acetic acid in water higher than that of a 0.1 M solution of…
A: pH pH is a scale used to measure the basicity or acidity of an aqueous solution. Those solutions…
Q: The pH of normal human blood is in the range of 7.35 to7.45. Compute the range of the concentration…
A: The pH of a solution is the measure of hydronium ion concentration or the proton concentration of…
Q: A KCC student titrated 100.00 mL of a NaOH solution using 55.00 mL of a 0.1000M H2SO4 solution. How…
A: The reaction of an acid with a base is called an acid-base reaction. It is also called a…
Q: If 0.752 moles of (NH3OH)Cl is dissolved in 1 L of water what is the pH of the solution?
A: pH is considered the scale used to determine the acidity or basicity of a solution. It is…
Q: A solution has a hydrogen ion concentration of 0.01 mol/L. What is its pH? What is its hydroxide ion…
A: Given Values: [H+] = 0.01 Mol/L = 1×10-2 M pH is a measure of negative logarithm of hydrogen ion…
Q: Which of the following structures is a 20:2 ^A4,9 fatty acid? CH3CH2CH = CH(CH2)3CH = CH(CH2)10COOH…
A: given fatty acid is 20:2^△4,9. Number of carbon in fatty acid = 20 Number of double bond = 2 Number…
Q: A 0.10 M solution of the deadly poison hydrogen cyanide, HCN, has a pH of 5.2. Calculate the [H3O+]…
A: The hydronium ion concentration can be found from the pH by the formula [H3O+] = 10-pH or [H3O+]…
Q: Identify the acid on the left and its conjugate base on the right in the following equations: (a)…
A: Acids are substances that are capable of donating a hydrogen ion and bases are substances that are…
Q: The electrons are unequally shared in and transferred in Multiple Choice Na CI", H20 CH4. N2 02 CH4…
A: The sharing of electrons between atoms of same or different element or transfer of electrons from…
Q: If there is an increase in the hydrogen ion concentration from 38 nmol.l-1 to 82 nmol.l-1, what does…
A: Acids and Bases:Acids: These are solutions that contain many hydrogen ions and it is represented as…
Q: 6.2. Indicate the most acidic hydrogen in each of the following molecules. Explain your reasoning.…
A:
Q: Lemon juice has a pH around 2.5. Milk has a pH around 6.5-7. Which of the following statements about…
A: A universal indicator is a mixture of different indicators or dyes which has many different colors…
Q: When two drops of NaOH were added to the water the color changed from purple to green. Did this make…
A: A pH measurement scale is used to specify the acidity or basicity of a solution. pH refers to the…
Q: + + NH3 NH3 pk, CH2 CH2 čoQH ČO0- At pH 3.34 will you have more or less ionization of the acid?…
A: Acids are substances that can readily donate a proton. Amino acids are molecules made of an amine…
Q: The H⁺ concentration in an aqueous solution at 25 °C is 4.3 × 10⁻⁶. What is [OH⁻]?
A: Hydrogen ion concentration [H+] of a solution is expressed in terms of pH. pH is the negative log of…
Q: The pOH of a solution of NaOH is 11.30. What is the [H+] for this solution? O 2.0 x 10-3 O 2.5 x…
A: pH is the measure of the concentration of hydrogen ions in a given solution. It is measured on a log…
Q: The pKa values of a compound with two ionizable groups are pK1 = 4.10 and pK2 between 7 and 10. A…
A: The Henderson-hasselbalch equation is:
Step by step
Solved in 3 steps
- The isoelectric point (pI) of glutamic acid is pH 3.08. Draw the structure of the major form of glutamic acid at pH values of: a. 1.00 b. 3.08 c. 11.00.Acetic acid is the principal ingredient in vinegar as shown; that's why it tastes sour. At equilibrium, a solution contains [CH3CO2H] = 0.0787 M and [H3 O+] = [CH3 CO2−] = 0.00118 M. What is the value of Ka for acetic acid?You have a mixture of 4 amino acids (Q, W, E, R, T) that you want to separate using ion exchange chromatography. Which of these amino acids would bind most strongly to a DEAE anion exchange column at pH 7? Q W E R T
- Draw the tripeptide gly-glu-phe with all ionizable groups in their predominant state at pH 7.0.In a 0.1000 M acetic acid solution at 25 degrees celsius , the acid ionizes to the extent of about 1.34 %. Since each molecule of acetic acid which ionizes produces 1 H+ ion and 1 C2H3O2- ion, the concentration in the solution are: HC2H3O2 < -----------> H+ + C2H3O2-DHA is a fatty acid derived from fish oil and an abundant fatty acid invertebrate brains. Hydrogenation of DHA forms docosanoic acid[CH3(CH2)20CO2H], and ozonolysis forms CH3CH2CHO, CH2(CHO)2 (fiveequivalents), and HCOCH2CH2CO2H. What is the structure of DHA if all double bonds have the Z configuration?
- What is the pH of a glycine solution in which the alpha-carboxyl group is one third dissociated? Given pka1=2.3, pka2=9.6The pH of normal human blood is in the range of 7.35 to7.45. Compute the range of the concentration of H3O+and the range of the OH- concentration in normal blood.1. a. Explain why the melting point of palmitic acid (16 carbons, no double bonds) is slightly lower thanthat of stearic acid (18 carbons, no double bonds). Explain why the melting point of oleic acid (18carbons, one double bond) is lower than that of stearic acid b. A mixture of lipids containing phosphatidic acid, cholesterol, testosterone, phosphatidylserine, andphosphatidylethanolamine was applied to a hydrophobic interaction chromatography column. Thecolumn was washed with a high salt buffer, and the lipids were then eluted with decreasing saltconcentrations. In what order would the lipids be eluted from the column? Explain your answer.
- why doesn't hexanes differentiate between a saturated and unsaturated fat or a cis/trans unsaturated fat? Explain how solubility plays a role in the effectivenss of a solvent to extracgt a particular compound. what are two different things that you can do to imporove the amount of compound extracted?The much-abused drug cocaine is an alkaloid. Alkaloids are noted for their bitter taste, an indication of their basic properties. Cocaine, C17H21O4N, is soluble in water to the extent of 0.17g/100mL solution, and a saturated solution has a pH = 10.08. What is the value of Kb for cocaine?Assuming one Free Radical per molecule, draw all of the hydroperoxide isomers based on possible resonance forms of the fatty acid 18:1w7.