Will the Calculated pKx, decrease, increase, stay the same, or could not be determined If the benzoic acid sample was contaminated with KOH.

Q: BOD determination using modified Winkler method Determination of molarity of a standard solution:…

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

Q: How would the following errors change the calculated value of the percent oxalic acid in the…

A:

Q: Hi, Could you summarise the Log D practical 'The Dependance of Distribution Coefficient Upon pH) -…

A: The standard solution of a solute is obtained by dissolving a calculated quantity of the solute in a…

Q: Which solution is of known concentration that is used to react completely with an analyte?…

A:

Q: A mixture of pure BaCO3 and pure Na2CO3 weighs 1.000 g and has the total neutralizing power of 15.37…

A:

Q: How would the calculated value of pKa of the unknown acid be affected (higher, lower,  or no change)…

A: The correct answer is given below

Q: Write the Ksp expression for the sparingly soluble compound iron(II) carbonate, FeCO3. If either…

A: Given, FeCO3 Ksp = ?

Q: Will a solvent with a small dielectric constant promote the dissociation of ionic solute A.Yes…

A: Since more is the dielectric constant of the solvent, more will be the solvation or hydration of the…

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: The dissociation expression of a dilute aqueous solution of acetic acid is shown as: CH3COOH(aq) +…

A: Acetic acid, a weak acid does not dissociate completely in aqueous solution but slight ionization…

Q: Which statement is true? Statement 1: Extraction is a technique used to separate compound/s of…

A: The solution is as below:

Q: Write the Ksp expression for the sparingly soluble compound lead phosphate, Pb3(PO4)2. Ksp =…

A: a) Pb3(PO4)2  dissociates in the solution as: Pb3(PO4)2(s)⇌3Pb2+(aq)+2PO43-(aq) Since Pb3(PO4)2 is a…

Q: Explain why different results are observed when HCl and H2SO4 are added to brine?

A: The different results are observed when HCl and H2SO4 are added to brine because in HCl, due to…

Q: Suggest a reason why the "stopwatch" method of measuring the reaction rate would be unsuitable under…

A: Interpretation: To reason why: a)  "stopwatch" method of measuring the reaction rate would be…

Q: Find the following: 1. slope and intercept of the calibration curve 2. the mean concentration of…

A:

Q: The Ksp of Fe(OH)3(s) is 3x10-39. What concentration of Fe3+ can exist in solution at pH 3.0?

A: Ksp = [ Fe+3] [ OH- ] 3

Q: (a) What is the molarity of the NaOH? (b) Based on the propagation-of-error formula, what is the…

A: (a)   When KHP is titrated with NaOH, the following reaction occurs: KHP+NaOH→NaKP+H2O

Q: Table 1: Volumes in of iodine in mL used to titrate mixtures of 10 mL of reaction mix and 10 mL of…

A: Given :            CF = 1.06           TVS (mg/hour) = x (ml) X CF ( mg vit.C/ mL iodine ) X TV (mL/…

Q: Ме N. Me solvent, 0 °C to reflux then Ме. N. Ме Me Me + 'N' CI "Ме Ме 42 Me' Lewis acid , 0 °C 41 25…

A: Organic reaction mechanism.

Q: Plot your values of In(Ksp) VS. 1/Tand find the slope and y-intercept of the best fit line. Use the…

A: The relationship between the ln(K) and 1/T is given as, And the ln(Ksp ) v/s 1/T data given is,

Q: For a strong acid with a strong base neutralization reaction, does the reactant 1 : reactant 2 :…

A: Some of strong acid + strong base reaction are: (i). HCl + NaOH →NaCl + H2O (ii). H2SO4 + NaOH…

Q: In the preparation of a standard stock solution for protein analysis, 50 mg of bovine serum albumin…

A: Mass of BSA in 10mL solution = 50mg

Q: R | с in the concentrations H₂PO 0.058 E - X 0.058 - X shown in HPO 2 + H+ 0 0.058 + X X = + X 0.058…

A:

Q: What are the basic medium, acid medium, and zwitterion formulas of phenylalanine?

A: Phenyl alanine is an amino acid. Amino acid exist in three form depending upon the pH of solution.…

Q: In the preparation of the standard curve for protein analysis, 50 mn BSA (bovine serum albumin)…

A:

Q: When an organic reaction is undergoing reflux, what are some potential errors (not human or…

A: A condenser which is used in organic chemistry which helps to safeguard reactant and solvent loss…

Q: Which of the following will result in an increase in the calculated Ksp of Ca(OH)2? Receiving flask…

A: Let's check all the given statements.

Q: 1) Using the measured pH, calculate the concentration of H3O+ and OH- at the equivalence point.

A: As per regulations we are only supposed to answer only one question.

Q: What would your main concern be if you accidentally used wash buffer (10mM imidazole) instead of…

A: Answer is explained below.  We know that, for binding to the metal-charged resin Imidazole competes…

Q: Tim is interested in analyzing for Pyraclostrobin (pesticide) in strawberries using QuECHers method…

A: 1-10 mg of pesticide is on per gram of the fruitThe tim is slicing 500mg fruit i.e. its's possible…

Q: In this experiment you were given the concentration of NaOH(aq). That concentration was determined…

A: The question is based on the concept of titrations. we have to explain the effect of wet potassium…

Q: Which of the following is not a component of the mobile phase in Ion exchange chromatography

A: Phase of mobility (Eluent)- Eluents for ion exchange chromatography are typically made up of an…

Q: Is it possible for a single molecule to test true positive in all the qualitative assays? Why or why…

A: A question based on qualitative analysis, which is to be accomplished.

Q: O TDSB Bookmarks Summary - PayPal 9 Steam Guard Mobil. Booter Panel ll Asylum Stresser - H. O Free…

A:

Q: In chromatography, the compound that is least soluble in the mobile phase a) Travels the furthest…

A: When a compound is dissolved in the mobile phase it is carried along the direction of flow, but when…

Q: What are the findings of Lahdenpaa et al. (1997) in using standard-grade Avicel® PH 101?

A:

Q: Which of the following would result in an increase in the calculated ngas 10, assuming the rest of…

A: The correct option is:

Q: average molarity of NaOH (from part A), M 0.5507 m NaDH HC,H,0,(aq) + NaOH(aq) -→ H,O(1) +…

A:

Q: Use the method of successive approximations to determine the pH and concentrations of H₂A, HA, and…

A:

Q: What is the unit of the gradient calculated from the Arrhenius plot ?

A: The Arrhenius plot has the equation – ln k = -EaRT+ln A

Q: Silver chloride (MM = 143.32 g/mol) has a Ksp of 1.7 x10-10.  If 95.7 g AgCl is stirred into 26.94 L…

A: The solubility reaction of AgCl is  AgCl (s) -----> Ag+ (aq) + Cl- (aq)  Assuming the molar…

Q: What is the effect of prolonged digestion in gravimetric analysis?

A: Gravimetric analysis is the process in which the amount of an analyte in a sample is determined by…

Q: Write the reaction of PCl5 with heavy water.

A: Phosphorous pentachloride has chemical formula PCl5 and it is a pale greenish-yellow solid color…

Q: Why is the glucose assay one of the most common analytical test performed in clinical chemistry.

A: Blood Glucose measurement is one of the commonly performed test . It is one of the longest…

Q: Calculate the pK, of hypobromous acid from its K, value.

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

Q: In the extraction of caffeine from tea, what would be the result if a student performs the…

A: Generally, caffeine is more soluble in dichloromethane or isopropyl acetate than in water. However,…

Q: When making the calibration plot, how do we find [FESCN2*] at equilibrium? What assumption is made?…

A: The reaction of Fe(III) with thiocyanate to give the colored product, iron(II)thiocyanate which is…

Q: When extracting an aqueous solution with an organic solvent and after agitation and settling, the…

A: Given information : When extracting an aqueous solution with an organic solvent and after agitation…

Q: To which sample solution the spike will be add? the distillate>130C the mass standard the…

A: A spike is  a known quantity  of analyte added to a sample of test solution whether to redponse to…

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.