What is the pH of a boric acid buffer solution containing 0.18 mol/L of boric acid, НзВОз, and 0.12 mol/L of its conjugate base? The pK, of boric acid is 9.14.

Q: A 25.00 mL sample of a clear saturated solution of PbI2 requires 13.3 mL of a certain aqueous AgNO3…

A: Solubility product For a compound, AxBy, the solubility product(Ksp) is; AxBy↔xAy-+yBx+Ksp=[Ay-]x…

Q: Calculate the pH of the solution after the addition of each of the given amounts of 0.0597 M HNO, to…

A: Since we only answer up to 3 sub parts, we'll answer the first three. Please resubmit the question…

Q: Complete the following: 1. Random error, also called _________arises from the effects of…

A: Given: Fill in the blanks To find: Appropriate answers Solution: Random errors are those errors…

Q: The Henderson-Hasselbalch equation: a. relates the pH of a solution to the pKa and the…

A:

Q: The solubility products for a series of iodides are a. CuI Ksp = I X 10-12 b. AgI Ksp = 8.3 X 10-17…

A: The solubility product of the given iodides can be calculated by using the following formula, S =…

Q: 1,2-Dichloroethane is a volatile organic compound that was once added to gasoline along with the…

A: A.    Let the concentration of 1,2-Dicholoroethane  = C mg/m3 the carcinogenic risk (R) = CDL ×SF…

Q: A 1.2525 g sample of canned tuna was analyzed by the Kjeldahl method: 30.25 mL of 0.1200 N HCl was…

A: The given data contains, mass = 1.2525 g. Volume = 30.25 ml = 0.03025 L. Normality of HCl =0.1200 N.

Q: Chapter 10 roblem 8 8 of 2 Review I Constants Period Part A How many milliliters of 0.250 M NaOH are…

A: Given, Molarity of H2SO4 = 0.350M.            Volume of H2SO4 = 35.0mL = 0.035L.The balanced…

Q: If

A: When you will add some amount of base on saturated acidic Solution then acidic Solution is…

Q: A1 liter solution contains 0.467 M hydrofluoric acid and 0.350 M potassium fluoride. Addition of…

A: A weak acid partially dissociates in aqueous solution to form certain amount of conjugate base and…

Q: Which dye can analyze pH in the range of 6.0 – 7.6 and has a final color reaction of green when…

A: Which dye can analyze pH in the range of 6.0 – 7.6 and has a final color reaction of green when…

Q: Write measurement of Carbon dioxide evolution during respiration of germinating seeds by the…

A: It is the development process of plant from a seed after a period of dormancy.  It is also occur in…

Q: A water solution of aspirin Hasp is prepared by dissolving 0.100 mol Hasp per liter. The…

A: Given Concentration of HAsp = 0.1 mol/L Concentration of H+ = 0.0057 mol/L

Q: A 1.40 g sample of silver nitrate(169.97 g/mol) is dissolved in sufficient water to make 125 mL of…

A: Answer: 1.0749 g is the mass of AgCl precipitate formed.

Q: 18. Calculate the pH of the solution formed when 12.0g of sodium fluoride (0.286mol) (NaF, FW- 41.99…

A: For a buffer- pH = pKa + log[Base][Acid]   Now, pKa = - log Ka = 3.19 [Acid] = 0.5 M [Base] = 0.286…

Q: Which statement is NOT correct? pH meter should always be standardized before using to…

A: For the accurate measurement of pH, the pH-meter must be standardised by a buffer solution of known…

Q: Determine the pH change when 0.075 mol HNO, is added to 1.00 L of a buffer solution that is 0.467 M…

A: We have to find pH change

Q: Calculate the concentration in ppm for 0.362 molar of magnesium hydroxide. MM: Mg: 24.30; OH: 17

A:

Q: A student is given an antacid tablet that weighs 5.6622 g.  The tablet was crushed and 4.3221 g of…

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Q: A solution of potassium permanganate is standardized using pure As2O3as the primary standard (upon…

A: we are required to find the  molarity of the potassium permanganate.

Q: Determine the solubility of the ions that is calculated from the Kep for Mg2CO3. 453 O 253 252

A: Given compound: Mg2CO3

Q: Calculate the pH of the solution after the addition of each of the given amounts of 0.0554 M HNO3 to…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: In part II, you add sodium acetate to the solution of acetate. Why must you add sodium acetate to…

A: Answer

Q: Fe3+ (aq) + SCN¯(aq)= FENCS²+*(aq)

A: The principle used to maintain the balance between both sides of the reaction is Le Chatelier's…

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: Some anions fall into distinctive categories that are specific to their class of ions. Though…

A: oxidising agent substances whose reduction takes place reducing agent substances whose oxidation…

Q: A chloride unknown weighing 0.3221 g is dissolved in an acidic solution and is treated with silver…

A: In the question, it is given that an unknown sample contains chloride which gets precipitated as…

Q: A1 liter solution contains 0.376 M hydrofluoric acid and 0.501 M potassium fluoride. Addition of…

A: Buffer is a solution which resists the change in pH of a solution by the addition of acid or base.…

Q: 1. The substance to be analyzed – is white, highly soluble in water salt. Addition of barium…

A: All salts considered  are fairly water in soluble Except BaSO3. So, possible salt is either  LiCl,…

Q: A student measures the molar solubility of calcium chromate in a water solution to be 2.56×10-2 M.…

A: Solubility means maximum amount of solute that can be dissolved in per liter of solution. Solubility…

Q: What causes the increase in conductivity of glacial acetic acid upon dilution with distilled water?…

A: 4. Adding water favors the ionization of glacial acetic acid by equilibrium shift.

Q: Write balanced equations describing each of the reactions in Steps1 through 5. A solution may…

A: Cationic analysis refers to analysis of a salt or a mixture for cations present in them. Group I of…

Q: Injected a patient with isotopic water concentration 100mg, after 2 hours of equilibrium the…

A: Amount of isotopic water given to the patient = 100 mg Amount of isotopic water excreted or lost in…

Q: NOH2PO4 and Na2HPO4 For what ratio between the concentrations of the two substances above would the…

A: The given buffer solution is a mixture of weak acid  NaH2PO4 and conjugate base Na2HPO4 . The pH of…

Q: The clear method is used to reset the buffer so that it can be used again Select one: True False

A: Clear method is used to discard all the elements.

Q: comparative analysis of organic compounds were done on various unknown samples labelled as A, G, N,…

A: Acid, smaller amine are soluble in water.  Larger amine, alkane and phenol are insoluble in water.

Q: A prod01-cnow-owl.cengagenow.com -Content C OWLV2 | Online teaching and learning resource fr... Fool…

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Q: One of the buffer systems the human body has to regulate pH is based on the phosphate anion. If…

A: A buffer works best at the pH near to the pKa value of the involved acid. First calculate the pKa…

Q: A nephrolith is formed due to Ca (II) oxalate, phosphate or urate precipitation. Will CaC204…

A:

Q: [Review Topics] [References] coring: Your score will be based on the number of correct matches minus…

A: Explained as follows

Q: A standard solution is a solution of accurately known concentration. What is a standard solution for…

A: Titration is the qualitative method to determine the concentration of unknown solution by adding the…

Q: A comparative analysis of organic compounds were done on various unknown samples labelled as A, G,…

A: Carboxylic acid, methanamine are missible in water.  Phenol, cyclohexanamine and alkane are…

Q: Why is acid rain harmful to marble and limestone structures? Your answer needs to go beyond “it…

A: Acid rain is the rain which contains chemical present in nature and other pollutants and falls on…

Q: We use distilled deionized water for making up NaOH solutions in order to minimize or eliminate the…

A: A question based on stoichiometry that is to be accomplished.

Q: Using the table of the weak base below, you have chosen Methylamine as your weak base in the buffer…

A: Given: The base is methylamine. And Kb of methylamine = 4.38 × 10-4

Q: presented by Macmilan Learning The acetic acid/acetate buffer system is a common buffer used in the…

A: Given that :  Molarity of acetic acid = 0.0951M  Volume = 30.7ml = 30.7ml×1L/1000ml = 0.0307 L…

Q: For a reaction system at chemical equilibrium that contains a slightly insoluble salt:- the…

A: Given : System of chemical equilibrium that contains a slightly insoluble salt.

Q: How long does it take for the concentration of the insecticide to reach one-quarter of the initial…

A: The nuclear reactions are a type of chemical processes which lead to the formation of some new…

Q: Scoring: Your score will be based on the number of correct matches minus the number of incorrect…

A:

Q: Briefly explain the effect of disulfiram.

A: Disulfiram: It is a kind of drug to treat alcoholism. It can produce very serious effects on the…