What is the ratio of lactic acid (Ka = 1.37x10-4) to lactate in a solution with pH =4.18?

Q: The pKa of HEPES is 7.55 at 20 degrees Celsius, and its molecular weight is 238.1. Calculate the…

A: Given: The pKa of HEPES = 7.55  The molecular weight of HEPES = 238.1 We have to calculate the mass…

Q: Consider a titration of 40.00 mL of 0.1250 M Na2CO3 with 0.4000 M HCl.  Carbonic acid (H2CO3) has a…

A: The number of milliequivalents of sodium carbonate Na2CO3 = 40.00 x 0.1250 = 5 mmol The number of…

Q: Explain a method for titration of HNO3-H2SO4 mixtures ?

A: A mixture of concentrated nitric acid and sulfuric acid find its usage in numerous chemical…

Q: Calculate the Ksp of the following compounds, given their molar solubilities. (a) SnS, 9.47 × 10-14…

A: Calculation of solubility product (Ksp)

Q: How does the addition of few drops of molar nitric acid affect the pH of a solution containing…

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Q: (a) How many grams of ammonium bromide would have to be added to exactly 500 cm³ of 0.10 M NH 3…

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Q: Why is the pH of sodium ethanoate greater than 7?

A: The structure of sodium ethanoate is as follows:

Q: The pH of a river was determined to be 8 and its CO32- concentration was 2.5 x 10-5 M. Given the…

A: Concentration of CO3-2 = [ 2.5 × 10-5 ]  Value of dissociation constant = 4.7 × 10-11 pH of river =…

Q: The least soluble in the group. A. NiS; B. MnS; C. PtS; D. Fes; Ksp = 8 x 10-37 Ksp = 7 x 10-16 Ksp…

A: The solubility product constant (Ksp) describes the equilibrium between a solid and its constituent…

Q: Calculate the concentrations of acetic acid (pK₁ = 4.76) and sodium acetate necessary to prepare a…

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Q: When PBF2(s) is dissolved in water at 25°C, the equilibrium concentration of Pb2+ cations is…

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Q: A particular solution is 0.05M with respect to ethanoic acid and 0.2M with respect to sodium…

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Q: What is the pH and fraction of dissociation of a 0.100 M solution of the weak acid HA with Ka =1.00…

A: pH and fraction of dissociation of a 0.100 M solution of the weak acid HA with Ka =1.00 X10(-5) are…

Q: 5. You were given with o.o25 M acetic acid and o.o25 M NaOH. You were then instructed to prepare a…

A: Given: Concentration of acetate ion in buffer = 0.02 M pH of buffer = 5.5  And the volume of buffer…

Q: A litre of solution containing 0 1 mole of CH3COOH and 0.1 mole of CH3COONa provide a buffer of PH…

A: Given , Moles of CH3COOH = 0.1 mol Moles of CH3COONa = 0.1 mol pH of the buffer = 4.74 Moles of NaOH…

Q: What is the buffer component ratio, (CH3COO-)/(CH3COOH) of an acetate buffer that has a pH of 4.75.…

A: pH  = 4.75 Ka = 1.8 x 10 —5

Q: Calculate the ratio [CH3COOH]/[N2CH3COO] that gives a solution with pH = 5.2? %3D (Ka = 1.8 x 10)…

A: pH = pKa + log ([salt]/[acid])

Q: If 100 mls of 0.02 M HCl added to 400 mls of 0.5 M glycine buffer at pH10.4, what is the resultant…

A: A buffer solution is the solution composed of acid and conjugate base in such a way so that the pH…

Q: Given that pKb for iodate ion (IO-3) is 13.83, find the quotient [HIO3]/[IO-3] in a solution of…

A: For a weak base, pH can be calculated as: pOH=pKb+logHIO3IO3-

Q: 4-Hydronium ion concentration at 250C in 0.1 M Sodium chloraacetate (ClCH2COONa) solution what? (Ka…

A: In this question, we want to determine the hydronium ion concentration.  How we can determine the…

Q: Using the Henderson Hasselbalch equation.calculate the voiume ratio of acetic acid and so dium…

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Q: Pbl2 in H2O has a KSP equaled to 8.0 x 10^-9. If there is 1L of H2O, how many moles of Pbl2 can be…

A: Given that: Solubility constant for potassium iodide = 8.0 × 10¯⁹ Volume of solution = 1 L To find:…

Q: What is the solubility of PbCO3(s) in 0.5M Na2CO3?

A: The solubility of a salt decreases in the solution due to common ion effect. The solubility of a…

Q: What is the pH of a solution of 0.400 M CH3NH2 containing 0.210 M CH;NH31? (Kb of CH;NH2 is 4.4 ×…

A: CH3NH2 is weak base and the CH3NH3I is conjugate acid of weak base . CH3NH2 = 0.400 M CH3NH3I =…

Q: Estimate the concentration of Ethanoic acid of a buffer solution containing 16.4 g/L CH3COONa and pH…

A: Since you have posted multiple unrelated questions, we are entitled to answer the first only. 5)…

Q: The Ka of CH3COOH is 1.8 x 10-5. Calculate the pH of a solution containing both 0.20 M CH3COOH and…

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Q: Aqueous Solutions and Chemical Equilibria. At 25°C, what are the molar H3O+ and OH concentrations in…

A: Answer: The dissociation constant is the equilibrium constant when either the weak base dissolves in…

Q: If 5 mL of 20% w/v aqueous solution of furosemide is diluted to 10mL, what will be its final…

A: Given that: Volume of solution = 5 mL Strength of solution = 20% w/v Volume added = 10 mL Final…

Q: 10.0 mL of 0.100 M HCl solution was added to 20.0 mL of 0.100 M (CH3CH2)3N (triethylamine).  Kb…

A: First we have to determine concentration of HCl and base

Q: 5.) What is K, for an acid whose pk, is 3.78?

A: This is the concept of converting terms

Q: ICE for each addition of common ions AgCl, Ag2So4 ksp of AgCl = 1.77 x 10^-10 Concentration of Ag=…

A: Given: Ksp of AgCl =  1.77 x 10-10 Ksp of Ag2SO4 = 1.2 x 10-5 (from literature) Concentration of Ag=…

Q: 15.3 mL of 0.1 M hydrochloric acid is used to titrate a 25 mL alkaline sample to achieve…

A: Given: Volume of acid = 15.3 mL Concentration of acid = 0.1 M Volume of alkaline sample = 25 mL

Q: Which of the following reacts with HCl to form a white precipitate?     Ag+     Pb2+     Hg22+…

A: Given, Ag+    Pb2+    Hg22+    all of the above

Q: What is the Ph of the buffer solution that contains 1.00 M HC2H302 (acid) and 0.800 M KC2H302 with…

A: Whenever the acid concentration as well as its conjugate base, or the base and its conjugate acid,…

Q: How could you distinguish solution of sodium chloride (table salt) from a solution of sodium iodide…

A: The solution of sodium chloride (table salt) from a solution of sodium iodide has to be…

Q: How would you prepare a benzoic acid/benzoate buffer with a pH pf 4.25, starting with 5.0 L of 0.050…

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Q: A piece of magnesium metal was reacted with each of the following acids: 3 M HCl, 3 M acetic acid…

A: The reactivity of an acid can be explained on the basis of the Ka value of the acid. More the value…

Q: A solution of acetic acid is 2.0% dissociated at 25.0°C. What was the original concentration (in M)…

A: Given:  Percentage of acetic acid solution = 2.0 % Temperature = 25.0 ° C Original Concentration of…

Q: Draw the amino acid Asparagine with the biologically-preferred stereochemistry and ionization…

A: We have to draw the amino acid Asparagine with the biologically-preferred stereochemistry and…

Q: What is the mole ratio of sodium acetate to acetic acid in abuffer with a pH of 5.75?

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Q: (a) What weight of glycine (pKal- 2.4; pKa - 9.6), and what volume of IM HCI are required to make…

A: At the half-equivalence point, the pKa for the solution is equal to pH of the solution. In 100 mL of…

Q: If 100 mls of 0.02 M HCl added to 400 mls of 0.5 M glycine buffer at  pH10.4, what is the resultant…

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Q: Complete the balanced dissociation equation for the compound below in aqueous solution. If the…

A: Dissociation reaction:- According to the above given condition the breakdown of a given compound…

Q: How many grams of CH3CH2CO2 Na should be added to 1.50L of a 0.250M CH3CH2CO2H solution to obtain a…

A: Since the pH of a buffer solution is given by Henderson-Hasselbalch equation as pH = pKa + log(…

Q: What is the percent dissociation of 0.150 M triethylamine? (The Kb value for triethylamine is 5.25 ×…

A: The Bronsted-Lowry acid-base theory was purposed by Bronsted and Lowery is called Bronsted-Lowry…

Q: 14. Acetic acid has a Ka of 1.8 x 10-5. What is the pH of a buffer solution containing 0.15M HC2H3O2…

A: This an acidic buffer of the acetic acid and acetate ion. The pH of the acidic buffer can be…