ans fast I will upvote A sample of PbSO4 solid has reached equilibrium in a beaker of water. If the ionic strength of the solution is then increased by adding LINO3 salt what happens to the activity coefficients of the Pb+2 and what happens to the solubility of the PbSO4 choose the option and explain the activity coefficient will increase and the molar solubility will decrease Both activity coefficient the molar solubility will decrease the activity coefficient will decrease and the molar solubility will increase Both activity coefficient the molar solubility will increase

Q: Cocaine (C17H21O4N; Figure 2) is a natural substance found in leaves of the coca plant, which have…

A: Given: The density of the hydrochloride salt of cocaine = 2.50 kg/L The density of pure cocaine =…

Q: Determine the %w/w of Ca in the original crushed eggshell sample.

A:

Q: estions: our percent enor. ent. 2. Why is it important that the color change occurs by the addition…

A: Multiple subpart are asked in question. I will answer the first 3 subparts, as per guidelines. An…

Q: If Ca(NO3)2 solution is added to the saturated CaSO4 solution; Solubility product of CaSO4 (KÇ)…

A: ans: The solubility of CaSO4  at 25 ºC is described by the following reaction and equilibrium…

Q: Mark the CORRECT alternative regarding the amino acid tyrosine: a) It can present anionic forms…

A: Amino acids are organic compound and carbon atom has two functional - amine group, and carboxyl…

Q: Calcium carbonate (CaCO₃(s)) is an important building material (limestone) and a quick cure for acid…

A: Calcium carbonate is used in the construction industry, as limestone aggregate for road building,…

Q: BIOCIHEMIOTRY. PRE-ACTI Q: Given that BSA has a molecular weightof S0,000 Daltons (9imol) please…

A: Given Values: Mol. wt of BSA = 80000 Dalton Weight if BSA = 10 μg The volume of water = 15 μl

Q: How much caffeine can be extracted using 50.0ml of DCM if a tea bag contains 15 grams of tea leaves…

A: Given Values: Amount of tea leaves = 15 grams % of caffeine present in tea leaves = 0.9%  Amount of…

Q: 8. For protein adsorption to the types of material surfaces designated below, indicate whether the…

A: Since water is the most abundant molecule within living organisms and thereby almost all…

Q: 2 of 2 The student then conducts an experiment to determine the solubility of AgCl in a 2.5 M NaCl…

A:

Q: nvolved in the dissociation of OL of water. Calculate the pH ([HAl at nH6 95.

A: pH of an aq solution is the concentration of the hydronium ion in moles per liter, known as…

Q: Calculate the net charge of the molecule at pH 3.

A: Amino acids are organic compounds with two functional group namely carboxyl and amino. Amino acids…

Q: IMULATION The Arrhenius Equation Click above or below the line for B or the transition state to…

A: Arrhenius' law predicts that the movement of structural units (atoms, molecules, ions, etc.) should…

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's the ratio? An acid with a pKapKa of 8.0 is present in a solution with a pHPH of 6.0. What is…

A: Acids are hydrogen-containing substances that donate a proton (hydrogen ion or H+) to another…

Q: 1. An electrochemical cell consist of 0.2715 Ibs of MnO2, and 0.2524 Ibs of PbO2. A current flow…

A:

Q: Calculate the [H+] and pKa from the pH of a solution of a weak acid – pH of a 0.02M solution of an…

A: An acid dissociation constant (Ka) is a quantitative measure of the strength of an acid in solution.…

Q: 1mL of the stock solution acetaminophen (1mg/mL) is used for the estimation of PC using n-octanol.…

A: Acetaminophen is also commonly known as a Paracetamol that is a medicine used to treat the fever and…

Q: 2. The standard state in biochemistry is slightly different than in Physical Chemistry. In…

A: Gibbs free energy, also called as Gibbs function is a quantity that is used to measure the maximum…

Q: water potential  a) At 20°C, a cell containing 0.6M glucose is in equilibrium with its surrounding…

A:

Q: 4. Would you expect the salt solution of CH,NH,Br to have a pH equal to, greater than, or less than…

A: CH3NH3Br: Methylammonium bromide. In an aqueous solution, it will dissociate as CH3NH3+ and Br- From…

Q: a MD order 15 millimoles of potassium phosphate (MW 136). How any milligrams are need for this does.…

A: Empirical Formula: H2KO4P Formula Weight (g/mol): 136g/mol Desired concentration: 15mM

Q: The solubility of proteins is generally high at lower ionic strengths. O True O False

A: Proteins are biomacromolecules that are made up of amino acids linked via peptide bonds. They…

Q: Calculate the concentration of an EDTA solution of which 24.22 mL were needed to titrate the…

A: In laboratories, various methods are employed for determining the concentration of a known analyte.…

Q: 3. Isoelectric focusing is a separation technique that takes advantage of the differences in…

A: The three amino acids are: Methionine, Lysine and Glutamic acid. pI of the amino acids(as per the…

Q: 4. The conc of formaldehyde remaining after 360 mins was 15 mL from an initial volume of 2000 mL.…

A: In the first order reaction  in which the rate of reaction is linearly dependent on one of the…

Q: For the treatment of his indigestion, Tin must drink a salt solution with a pH between 8.00 to 8.50.…

A: Given : Water-soluble salt generated from the ions K+ and C3H2O42-.  Ka1 = 0.0015 Ka2 = 0.000002…

Q: Calculate the Molarity of solution have 20 g of Glucose sugar C12H22O12 Dissolved in 125 g of water…

A: Weight of the sugar = 20 g The volume of solvent (Water) = 125 g or 125 ml The molecular weight or…

Q: If you pour whisky over ice, the ice will cool the drink, but it will also dilute it. A solution is…

A: Solution Given in question Mass of whisky is mw = 55 g. Temperature of the whisky is Tw = 22°C. Mass…

Q: You need a buff er at pH 7.5 for use in purifying a protein at 4°C. You have chosen Tris, pK 8.08,…

A: pH affected by a change in temperature.

Q: 1. Determine the isoelectric pH (pI) of the amino acids (a) Met, M, (b) Glu, E and (c) Lys, K. Show…

A: Isoelectric point(pI) is the pH at which the net charge on the species (here amino acid ) is 0 i.e.…

Q: In mixing compounds with water, the polarity of the compounds helps predict their solubility. When a…

A: Covalent bonds:- When the electron pairs are shared by the atoms, then a covalent bond is formed.…

Q: A: State the Lineweaver Burke equation. B: Calculate the kinetic parameters Vmax and KM from the…

A: Parameters such as Km and Vmax are used for comparing enzyme activities. If we know the initial rate…

Q: The protein calcineurin binds to the protein calmodulin with an association rate of 8.9 × 103 M−1 s…

A: The dissociation constant is a kind of equilibrium constant which measures the property of a large…

Q: Enter be balanced equation for the ionization of butanoic acid, carboxylic acid, in water.…

A: Carboxylic acid comes under organic acids and contains carboxyl group(C(O=)OH). The general formula…

Q: Remember that DNA is a sequence of the letters A,C,T, and G. A binds with T and C binds with G.…

A: The Chargaff's rule of base pairing states that the purine Adenine (A) always pairs with the…

Q: B) An aqueous solution (pH ~7) containing mixture of three amino acids; glycine (G), arginine (R)…

A: At pH=7,  Glycine is uncharged.  Arginine is positively charged. Glutamic acid is negatively…

Q: Calculate the ratio of dihydrogen phosphate/hydrogen phosphate in blood at pH 7.4. The Ka is 6.3 x…

A: Hydrogen phosphate : It is a phosphate ion that is the conjugate base of dihydrogenphosphate. It has…

Q: Convert the experimental glucose concentration provided in below from mM (millimolar) to g/100 mL.…

A: A solution is a homogeneous mixture of solute and solvent where the solute is completely dissolved…

Q: More ratios. Through the use of nuclear magnetic resonance spectroscopy, it is possible to determine…

A: From Henderson Hassel batch Equation pH = pKa +log [A*]/ [HA]

Q: (a) Write down the reaction of phosphatidylcholine (PC) cleaved by PLA2. Suppose the two acyl groups…

A: Phospholipids are degraded by phospholipases that cleaves the phosphodiester bonds.  Phosphatidyl…

Q: A 10.00-mL aliquot of unknown oxalic acid solution required 15.44 mL of 0.011 17 M KMnO4 solution to…

A: Titration is a technique that helps to estimate the concentration of an unknown solution using the…

Q: You want to make 500 ml of an isosmotic glucose solution to infuse into the blood of a patient.…

A: When two cells are having same osmotic pressure at a given temperature is known as isotonic…

Q: Isotonicity. Show your complete solution. 1. A hospital pharmacist fills a medication order calling…

A: As per our policy, we are answering the first 3 questions only. Kindly repost for other questions.…

Q: A researcher wants to look for glucaronic acid conjugated metabolites in sample of urine(glucaronic…

A: Glucuronic acid is an acid which is isolated from urine. It is a type of uronic acid. Uronic acids…

Q: The ionizable side change (-OH) of a synthetic amino acid has a pKa of 6.54. Find the amino acid's…

A: The pH at which the amino acid has no net charge and is electrically neutral is called isoelectric…

Q: Method/s of denaturation. CHECK ALL THAT APPLY. You must be able to check all of the correct answers…

A: There are different ways by which a protein can be denatured, where the level of the protein…

Q: True or False.                               1.___ When both exist,  common ion effect is usually…

A: NOTE: Since you have asked multiple question, we will solve the first question for you. If you…

Q: An appropriate biochemical buffer should have charges in both conjugate acid and conjugate base…

A: Buffer solutions often are weak acid/strong acid and conjugate base. buffers resist the change…

Q: This is the kcat question. At maximum saturation, 28.3µg of enzyme in 25ml water catalyzes the…

A: It is termed as kcat and defined as the maximum number chemical conversions of substrate molecules…