Q: Which of the following contains the highest concentration of H3O+? Group of answer choices 0.1 M HA,…
A: We know that, More is the pka value less will be the acidity and less is the pka value more will be…
Q: The K, for acetic acid (CH,COOH) is 1.737 x 10-. What is the pK for this acid? pKa = Use the…
A: 1) Ka(CH3COOH) = 1.737 x 10-5 pKa = -logKa = -log(1.737 x 10-5) pKa =…
Q: The Ka for an acid is 4.45 x 10-10. Calculate the pKa for this acid.
A: Ka = 4.45 x 10-10
Q: A student mixes 40.mL40.mL of 0.10MHBr(aq)0.10MHBr(aq) with 60.mL60.mL of 0.10MKOH(aq)0.10MKOH(aq)…
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Q: Based on the TLC plate, what can you deduce A salicylic acid B your synthesized aspirin Ca standard…
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Q: form whan lo0.0ml of 4.0xl0 MgC(NQ); -4 My(NG)2 l00,0ml of 2.0 x10"M Na OH ? "M #14.Will a ppt. ù…
A: Given : Concentration of NaOH = 2.0 X 10-4 M Volume of NaOH solution = 100.0 mL = 0.100 L…
Q: In an acidic solution with a pH of 3.4, 78% of the acid is ionized. What is the pKa of the acid?
A: pH is defined as negative logarithm of hydrogen ions present in the solution.
Q: For the second dissociation of H, CO3: HCO3(aq) + H,O=H;O) + COaq) + CO3(aq) (1) a. At what volume…
A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: Detemine the JOt|- pll, and pOHl of a solution with a H| of70x 10-" Ma 25 c. JOHF| = M pi = POH =
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Q: allergic to the odor of ammonia. You smelled an ammonia solution with the pH 9.3 yesterday and it…
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Q: Given CoCO3 has a Ksp of 1X10^-10 a. what is the concentration of the cation b. what is the…
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Q: 5. The Ksp of Fe(OH)3(s) is 3 × 10-39. What concentration of Fe3+ can exist in solution at pH 3.0?
A: Given- Ksp of Fe(OH)3=3×10^-39 pH of solution= 3.0
Q: If 35.09 of KCNIS added to 500mL of ater, what is the final Concentrahon of hydrocyanic acid? (Lšthe…
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Q: The mineral fluorite is composed of CaF2. The molar solubility of calcium fluoride in water is 2.1 x…
A: The molar solubility of an insoluble ionic compound tells you how many moles of said compound you…
Q: Arsenic acid (H3AsO4) is a triprotic acid with 3 pKa values (2.24, 6.96, and 11.50). What is the Kb…
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Q: What is the pKa of a weak acid with a Ka of 4.7 X 10-6?
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Q: A solution is made by dissolving 27.5 g of HONH3CIO3 in 500.0 mL of water. What is the value of Ka…
A: Bronsted acid accepts hydrogen ion and Bronsted base donates hydrogen ion. The dissociation constant…
Q: I CottizO +L6O27 L6CO2+ What are the molars you might need ? DEP coti2 OLo
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Q: Given that the solubility of PbCrO4(s) (323.2g/mol) is 4.5 x 10-5g/L, calculate the Ksp of PbCrO4…
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Q: Given the Ksp which of the following is the most soluble? PbC204. 8.5 x 10-9 CaC204. 1.7 x 10-9…
A: Which among the following is more soluble--
Q: If an acid with a pKa of 5.3 is in an aqueous solution of pH 5.7, what percentage of the acid is…
A: Henderson Hasselbalch equation is given below. During a dissociation of acid in aqueous solution,…
Q: What is the Ksp expression for this dissolving reaction? NazPO4(s) = 3Na*(aq) + PO43(aq) -3, O A.…
A: Ksp expression is written as products of concentration of ions raise to the power the coefficients .
Q: At 25 °C the pKb for propanoate, C2H5COC", is 9.13. What is the pKa for its conjugate acid? a. 4.87…
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Q: The R group of glutamic acid is ––CH2CH2COOH (pKa = 4.07). Sketch the titration of the sidechain of…
A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…
Q: Which Keg corresponds to a negative value of AG , Keg = 225 or Keg = 0.125? Select the single best…
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Q: the question states that the Ka value was 3.0 x 10-8 but in step two to calculate the value of pKa…
A: The Ka of hypochlorous acid HClO in the main question is given by 30.0 × 10-8.…
Q: Calculate the pH of a 0.0148 M solution of arginine hydrochloride (arginine-HCI, H2Arg+). Arginine…
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Q: The K, for acetic acid (CH,COOH) is 1.737 × 10-5. What is the pK, for this acid? pKa = Use the…
A: We know that, pKa is the negative logarithm of Ka. i.e. pKa= -logKa We have, Ka…
Q: 10 Shown is the titration curve for histidine. a) What species are present at each plateau? b) Using…
A: The key building block of protein macromolecules known as amino acids has an amine (-NH2) and a…
Q: At 25 °C, what is the value of Kb for the cyanide anion, CN? Ka(HCN) = 6.2 × 10-10 O 1.6 x 10-4 O…
A: The question is based on the concept of EQUILIBRIUM. We have been given Kb value. We need to…
Q: A student determines that the value of Ka for H2CO3 = 5.7×10-7 . What is the value of pKa?
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Q: Calculation 1: Initial concentration of hexaaquacobalt(II) ion: 0.022M Calculation 2: Initial…
A: To calculate equilibrium concentratios , we would first write a balanced chemical equation for this…
Q: Fe(OH)3 has a Ksp of 2.8 x 10-39 and PbCl2 has a Ksp of 1.0 x 10-4. Which substance has a higher…
A: Given : Ksp of Fe(OH)3 = 2.8 X 10-39 And Ksp of PbCl2 = 1.0 X 10-4
Q: A solution is made by dissolving 27.5 g of HONH;CIO3 in 500.0 mL of water. What is the value of Ka…
A: The reaction is: HONH3ClO3(aq)→HONH3+(aq)+ClO3-(aq) HONH3+ further undergo hydrolysis as:…
Q: Given that Ka for pyruvate =3.1*10-3. What is the pH of a buffer made by mixing 0.1 M pyruvate with…
A: The formula to calculate the PH is... PH = pKa + log ( [salt] / [acid] ) pKa = - log Ka Ka =…
Q: The Ksp of CaF2 is 3.9x10^-11 at 25 degree Celsius. What is the concentration of Ca++ and F- in the…
A: Solubility product is an equilibrium constant which is calculated using law of mass action. It is…
Q: f a tetrapeptide, glutamate-glycine-alanine-lysine.
A: In this pI value concentration of Zwetterion is maximum and charge is neutral it can bot move in…
Q: average molarity of NaOH (from part A), M 0.5507 m NaDH HC,H,0,(aq) + NaOH(aq) -→ H,O(1) +…
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Q: A 1.0-g fat was titrated against a 0.500-M KOH and consumed 13.0-mL of the titrant. A blank analysis…
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Q: What is the concentration of silver in an aqueous silver thiocyanate solution? Ksp silver…
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Q: 4. You are given a 10X restriction enzyme buffer. You will be setting up a digestion reaction that…
A: Dilution of the solution: When we dilute a concentrated solution with pure water, the mole of solute…
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Q: A mixture of valine, glycine, isoleucine, aspartic acid, phenylalanine, arginine, lysine,…
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Q: At 25 °C, Kc = 1 × 10–85 for the reaction 7IO3–(aq) + 9H2O + 7H+(aq) I2(aq) + 5H5IO6(aq) What is…
A: When an equilibrium reaction is reversed then the equilibrium constant of the reversed reaction is…
Q: Q2. At 25°C, water dissolves 0.8108g of PbCl2 per liter, calculate the Ksp of PbCl2 at 25°C.
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Q: Common aspirin is acetylsalicylic acid, which has the structure shown below and a pK, of 3.5.…
A: HC9H7O4 <——> H3O+ + C9H7O4- Using Ka = [H3O+][C9H7O4-]/[HC9H7O4] Ka is dissociation…
Q: How much protein do you need to add to the 800 µL buffer in the first microcentrifuge tube to make a…
A: Given : Dilution = 1:5 The volume of buffer solution = 800µL 1:5 dilution means 1 part protein and…
Q: I know this one is gonna take a while and I am truly sorry that there is alot I am just super stuck…
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Q: Effect of pH on Solubility Given and CuCO3 (s) ⇒ Cu²+ (aq) + CO² (aq) where Ksp = = 2.5 x 10-10 10 =…
A: Ksp is solubility product of a salt . It is basically the product of ionic concentration in a…
Q: Compute for the pKa of benzoic acid (Ka = 6.3 × 10-5).
A: Given acid dissociation constant (Ka) of benzoic acid = 6.3 × 10-5 acid dissociation constant (Ka)…
kb = 1.8 x 10-5
What is pkb, pka, and ka when kb is given
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- Macmillan Learning Complete the Ksp expression for Ag₂CO3. Ksp = 8.46 × 10-12 = MacBook Pro Search or type URLThe Ksp for SrF2 is 2.45 x 10-9. Use this information to calculate the solubility of Strontium Fluoride in water (find the [Sr2+] and [F-] at equilibrium). SrF2 (s) Sr2+ (aq) + 2F- (aq) I C E3) One of the main buffer systems found in living organisms is the phosphate buffer system, often used in biological research to mimic cellular conditions. The phosphate equilibrium reactions and their corresponding pKa's are as follows: H3PO4 = H* + H2PO, H2PO, = H+ + HPO?- HPO- = H+ + PO;- pKa1 pКаz —D 7.21 = 12.44 = 2.12 pKa3 (a) Given the above chemical reaction, write out the expression for K, of the buffer system which would predominate at neutral pH conditions. Justify your choice. (b) The human body, and many other lifeforms, prefer an internal pH of 7.2 to maintain homeostasis. However, some more acid-tolerant or basic-tolerant organisms can survive (and sometimes thrive) within different ranges of pH. Calculate the mass and moles of the correct acid and corresponding conjugate base solid (assume you have sodium salts of each base: NaH,PO4, Na,HPO4, and Na PO,) which are needed to make 500 mL of a 0.5 M buffer solution (0.5 M total, including the concentration of acid and base…
- Write the Ksp expression for the sparingly soluble compound barium phosphate, Baz(PO4)2. Ksp = A₂ If either the numerator or denominator is 1, please enter 1Salts containing the phosphate ion are added to municipal water supplies to prevent the corrosion of lead pipes. Based on the pKa values for phosphoric acid (pKa1 = 7.5 * 10-3, pKa2 = 6.2 * 10-8, pKa3 = 4.2 * 10-13) what is the Kbvalue for the PO43- ion?Write the Ksp expression for the sparingly soluble compound silver cyanide, AgCN. If either the numerator or denominator is 1, please enter 1. Ksp = Submit Answer Retry Entire Group 8 more group attempts remaining
- An enzyme is needed to be stored in a buffer solution with a pH of 10.00. Unfortunately, only three buffer systems are available in their laboratory: Buffer System Weak Acid Component Ka Conjugate Base Salt PAH Benzoic acid, C6H5COOH 6.25 x 10-5 NaC6H5COO SAD Boric acid, H3BO3 5.81 x 10-7 NaH2BO3 DOH Hydrogen cyanide, HCN 6.20 X 10-10 NaCN In what buffer system (PAH, SAD, or DOH) will Phoebe store the enzyme? (show calculations and briefly explain) Write the equilibrium reaction involved in the buffer system. Calculate the amount (in mL) of the 2.00 M stock solution (pH 10.00) of the same buffer system needed to prepare 250 mL of a 0.650 M buffer pH 10.00.Write the Ksp expression for the sparingly soluble compound calcium phosphate, Ca3(PO4)2. Ksp = If either the numerator or denominator is 1, please enter 1.The Ksp of Fe(OH)3(s) is 3 × 10-39. What concentration of Fe3+ can exist in solution at pH 3.0?
- You are viewing Sonjae Wallace's screen REC View Options Q8: Level 3+ (Unit 13, L.G. 11) Given the following information: O1 + H,0 = HOI + OH H,0 = %H;0* + ½OH K, = 5 x 104 K2 = 1 x 107 What is the value of K for the rxn HOI + H,0 = 01+ H,0*? A. 2 x 10-11 B. 5 x 10 11 C. 2x 10-4 D. 4 x 104 To: Type P Type here to search a brt %23 * 4 5 Q Y. LL M alt alt ctri1. Amino acids are the building blocks of proteins. The simplest amino acid is glycine, NH2CH2CO2H. There are three forms in equilibrium with one another. +NH3CH2CO2H(aq) + H2O(l)↔+NH3CH2CO2-(aq) + H3O+(aq) Ka = 4.5 x 10-3 +NH3CH2CO2-(aq) + H2O(l)↔ NH2CH2CO2-(aq) + H3O+(aq) Ka = 1.7 x 10-10 If the pH of a natural system (i.e. your body) is 7.2, in what form is the amino acid found? Justify your answer both with rational as well as a quantitative rationale. 2. Sulfanilic acid, which is used in making dyes, is made by reacting aniline with sulfuric acid: H2SO4(aq) + C6H5NH2(aq)→ + H2O(l) a) If you want to prepare 150.0 g of sulfanilic acid, and you expect only an 85% yield, how many milliliters of aniline should you take as a starting material? (ρaniline = 1.02 g/ml) b) Give the approximate values for the following bond angles in sulfanilic acid: A ______B ______ C ______D _______ c)Give the appropriate hybridization for the following atoms in sulfanilic acid:A ______B ______ C ______D…If a solution of dissolved acid has pH = 2.5 and the pka for the acid chemical is 4.3 and you measure the concentration of the conjugate []-base to be 10mm, what is the concentration of the acid in the solution? pH = pka + logi [HA]