Lactic acid, HC3H5O3, is a monoprotic acid that dissociates in aqueous solution. If a solution containing 0.50 M lactic acid is 1.66 percent dissociated to ionic form, calculate the value of Ka for lactic acid. Include answer to 3 significant figures

Q: Which one of the following is  a conjugate acid-base pair?   Group of answer choices HCl and NaOH…

A: An acid and a base which is differ by one proton (presence or absence of protons) are known as…

Q: A 3.498 g sample of an unknown mixture of salts containing chloride produced 7.411 g of AgCl(s) when…

A: Given,  Mass of unknown mixture of salts = 3.498 g  Mass of AgCl = 7.411 g

Q: How many mL are in 454.6 g of blood plasma? The density of blood plasma is 1.025 g/mL 1 pound = 454…

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Q: A 300 ml 1.6 M solution of an acid (HA), has a pH of 2.4 at 25oC.  From the given information, could…

A: We are provided with a 300 mL 1.6 M solution of an acid HA which have a pH of 2.4 at 25°C. We are…

Q: Given the solubility, calculate the solubility product constant (Ksp) of each salt at 25°C:…

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Q: Chiral compounds have a so-called asymmetric carbon atom in the molecular structure, and are optical…

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Q: Calculate the milligrams of acetone in 0.75ml of pure acetone. Density 0.78g/ml

A: we have to calculate milligrams of acetone

Q: describe/ analyze the IR spectra pattern of benzoic acid

A: We have find out the answer.

Q: The following reaction: CH3CH₂Br + H₂O CH3CH₂OH + HBr is first order with respect to CH3CH₂Br and…

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Q: Balance the redox reaction below in acidic conditions. Zn2+(aq) + NH4+(aq)  ⇌  Zn(s) + NO3⁻(aq)

A: Rules for balancing equations in acidic medium:  1) write the equation in two halves  And balance…

Q: A stepwise reaction  (A+2B ----> 3D) has the following elementary steps:        A  ------> C (slow…

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Q: 11 Deriving the Nernst Equation From the diagram above derive the Nernst equation. Faraday constant…

A: The concept used in this question is taken from electrochemistry.  Here we have to find Nernst…

Q: 8. Calculating Go and G given Kp and partial pressure data. The equilibrium constant (Kp) for the…

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Q: 24. A water sample contaminated with MgCO3 (MM = 84 g/mol) has hardness value of 840 PPM What is the…

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Q: Boric acid, H3BO3, is commonly used in eyewash solutions in chemistry laboratories to neutralize…

A: Boric acid, H3BO3, is commonly used in eyewash solutions in chemistry laboratories to neutralize…

Q: What is the difference between interstital and substitutional solid solutions?

A: Solid solutions are the solid state solutions which have two or more types of elements in the same…

Q: If the ( mass / volume ) is 1.80% of a solution containing 3.6 g of sodium chloride, what is the…

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Q: СН3ОН + :NH3 +

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Q: In a hospital, an IV drip solution is prepared by dissolving 5.50 g dextrose, C6H₁2O6, in 100.0…

A: Given that, Mass of dextrose (C6H12O6)=5.50g  Molar mass of dextrose=180g/mol Mass of water=100.0g…

Q: The reaction 2A + B ----->  5C  is an elementary reaction.  The overall order of the reaction is:…

A: Order of Reaction

Q: describe the NMR spectra pattern of benzoic acid

A: The molecular formula of benzoic acid is C7H6O2.

Q: CH3 Br C=C H CH₂CH3 Br₂ (CH3)2Culi

A: (CH3)2CuLi is a  soft nucleophile. Here CH3- acts as the nucleophile . Br2 in presence of sunlight…

Q: A certain metal M forms a soluble nitrate salt M(NO3)2. Suppose the left half cell of a galvanic…

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Q: What is the major product(s) formed by treating 3,3-dimethylcyclopentene with H3O+ and heating?…

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Q: It is observed that Ni, with an atomic mass of 65.9291 u, decays by emission. Identify the nucleus…

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Q: Which of these compounds is the least soluble in water? CaF2   (Ksp = 3.5 x 10-11) FeF2   (Ksp =…

A: We know higher the value of s more soluble will be the salt .

Q: If 28.0% of a sample of copper-64 decays in 6.16 hours, what is the half-life of this isotope (in…

A: According to the first-order kinetics, the decay constant is given by: Where, a = initial amount of…

Q: hypothetical element (X) has an atomic mass of 114.9 g/mol and crystallizes with a Body Centered…

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Q: For each of the following synthesis, draw the products that would be formed A-D. CI HNO3 H₂SO4 A 1.…

A: The nitration of chlorobenzene gives both ortho and para products. The major product is para Chloro…

Q: Consider a manometer (a barometer-like device used for measuring pressure) constructed using ethyl…

A: Given: Density of ethyl alcohol = 0.789 g/mL Height of Hg = 31 mm Density of Hg = 13.56 g/mL

Q: Given the following reaction: NaOH   +   HCO2H   --->   H2O   +   HCO2-   +   Na+ If you had equal…

A: We are provided a chemical reaction of a strong base sodium hydroxide with a weak acid acetic acid.…

Q: 2. Write the reagents and steps needed to perform the following synthesis (multiple steps may be…

A: In the presence of H2O2, addition of HBr give anti-Markovnikoff product Ethyl acetate can be…

Q: Define the covalent bonding of atoms. With the aid of diagrams, show the covalent bonding of…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 5. Consider the reactions of esters, draw the main product for each CH3 -F CH3 H₂O H₂O* CH,NH,…

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Q: 1. Calculate the pPb^2+ at each of the following points in the titration of 20.00 mL of 0.0200M…

A: EDTA called as ethylenediaminetetraacetic acid is a complexometric indicator consisting of 2 amino…

Q: The molecule below is achiral. CH3 ¿ True or False True False

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Q: Match each substance with its effect on the solubility of CaF2 when the substance is added to an…

A: Given Compounds Tip: common ion decreases solubility of the compound

Q: Imagine a newly appointed chemist in the Walgreens you work at has to prepare 200ml of  a 0.05M…

A: The given are, The Volume of the KCl solution is = 200 ml = 0.2 L The molarity of the KCl solution =…

Q: Which of the following is not a sufficient condition for a spontaneous process? ΔG 0 ΔE 0(cell) >…

A: A process which proceed in the forward direction without doing anything from outside, or without any…

Q: II. Rank the following in order of basicity and explain your choices. CH3 ola oto oto NO₂ B

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Q: Draw the radial distribution function (as a function of r) for a 5dxy atomic orbital

A: The concept used here is from thermodynamics of physical chemistry.  Formula for radial node = n - l…

Q: 7. Propose the appropriate reagent for each step to make the following molecules Reagent 1 Reagent 2…

A: Chromic acid oxidizes primary alcohol to COOH Alcohol and carboxylic acid react together in the…

Q: A certain metal M forms a soluble sulfate salt MSO4. Suppose the left half cell of a galvanic cell…

A: Given,  Concentration of left galvanic cell =1.50 M  Concentration of right galvanic cell = 75 mM

Q: A certain metal M forms a soluble nitrate salt MNO3. Suppose the left half cell of a galvanic cell…

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Q: Boric acid, H3BO3, is commonly used in eyewash solutions in chemistry laboratories to neutralize…

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Q: PLEASE DO BOTH PARTS OF THIS QUESTION AS FAST AS YOU CAN>>>> THANK YOU SOOO MUCH>>>  How much heat…

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Q: po preu ma TOA NBS or Br2 A

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Q: A) Y 1. HI 2. t-BuOK, t-BuOH B) m C) X.T D)

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Q: Calculate the density of freon -12 (CF2Cl2) at 26.5 oC and 0.687 atm. density = ___  g/L

A: Density of substance is calculated by dividing given mass with volume. In the given question, it has…

Q: What happens when we reduce a symmetry of a metal from spherical to On? How do the energies of the…

A: In Octahedral symmetry, ligands approach along the x-axis and y-axis and z-axis, along these axis…