The dibasic compound B (pKb1 = 4.03, pkb2 = 8.06) was titrated with 1 M HCI. The initial solution of B was 0.100M and had a volume of 100.0 mL. Find the pH at the following volumes of acid added: Va = 20.00, and 22.00 mL. (Assume Kw = 1.01 X 10-14.) answer given pH = 3.54 and pH = 1.79 respectivley please show all the work
Q: OK :0: :0: Select to Add Arrows Select to Add Arrows i :0: ■ Select to Add Arrows I cyclohexanol…
A:
Q: Consider the reaction below. Which species are the Brønsted-Lowry bases? HPO2 (aq) + NO¿(aq) = PO³…
A: A species which accepts H+ is called a Bronsted base
Q: What is the pH of a 8.5 × 106 M HBr solution?
A: pH = 5.1 (Rounded off.)Explanation:Step 1: HBr is a strong acid. So, in aqueous solution, HBr…
Q: A buffer solution is 0.406 M in KHSO3 and 0.324 M in K2SO3. If Ka for HSO3 is 6.4 × 108, what is the…
A: pH = 7.09Explanation:
Q: If the theoretical yeild of a reaction is 29.5g and the actual yield is 25.8g, what is the percent…
A: The objective of this question is to calculate the percent yield of a chemical reaction. The percent…
Q: 2. Draw all possible products (regardless of major/minor) from the following reaction. No need to…
A: The alkyl halide is tertiary, nucleophile is weak and solvent is polar protic. So, it will favor…
Q: 1. 2. 3. (J) Progress of Reaction Ep (J) Progress of Reaction Ep (J) Progress of Reaction Ep (J)…
A: The potential energy diagrams and equations given are,l Endothermic reactionsEndothermic reactions…
Q: Consider this organic reaction: Draw the major products of the reaction in the drawing area below.…
A:
Q: 2. At 298.15 K, a reaction's equilibrium constant is 0.497. The equilibrium constant becomes 1.93…
A: The objective of this question is to calculate the standard enthalpy change (ΔH°) and the standard…
Q: 2) Draw the major product expected for the reaction below: Me2NH (excess) acetic acid
A: The objective of the question is to find the expected major product of the reaction in which…
Q: 5. H3CO OH 2 HCONH,
A: It is a reaction between formamide and a ketone. This is a reductive amination reaction that takes…
Q: 3) Draw the appropriate arrow pushing mechanism for this two-step reaction: 2) 1) NaNH, Br
A: The objective of the question is to find the arrow-pushing mechanism for the given two-step reaction…
Q: Draw the product, with the correct stereochemistry, of the Sharpless e Ti OCH (CH3)2], and the…
A: Sharpless epoxidation is an enantioselective reaction that produces one enantiomer as a major…
Q: Payalben
A: The objective of this question is to find the final temperature of a sample of nitrogen gas when it…
Q: Draw the major organic product(s) of the following reaction. CI + NaOCH3 CH₂OH
A:
Q: is first order in [Fe3+] and the rate constant k is 1.27/s. If colormetric analysis depends on 90%…
A: The objective of the question is to calculate the time required for 90% of the reaction to be…
Q: 4.3.4. What mass of calcium chlorite would contain the same number of oxygen atoms as are present in…
A: Given,mass of sodium hypochlorite ( NaOCl ) = 10.00 gnumber of oxygen atoms are same in 10.00 g of…
Q: Provide the correct systematic name for the compound shown here.
A: We have to find the systematic name of the given compound.
Q: Example: Calculate the pH when the following quantities of 0.200 M NaOH solution have been added to…
A: Since you have posted a question with multiple sub parts, we will provide the solution only to the…
Q: C. H3CO OH OCH3 OH d. Ph
A: The objective of this question is to predict the sequence of reactions involved in the synthesis of…
Q: :Which of the following are Enantiomers
A: The molecules with the same molecular formula but different structures are known as isomers. If the…
Q: ? O H₂O, HCI, benzene 1. HCI, 2. ONa
A: The given scheme involves the conversion of alkene to esters. Scheme for the conversion of alkene to…
Q: 3. Draw two different mechanisms to account for the following transformation under acidic condition…
A: In the given reaction, there is an aldehyde, a ketone, and a secondary amine group which react to…
Q: - Which of the following is a meso compound? a. CI OH b. CH₂CH₁₂ OH CI CH.CH C. d. H₂C CH3
A: Meso compounds are the achiral compounds having multiple chiral centers. Meso compounds are…
Q: plete the following dislocation reactions: a/2[111] + a/2[1-1-1] --> a/6[11-1] + a/3[112] -->…
A: Given the dislocation reactions:a/2[111] + a/2[1-1-1] -->>a/6[11-1] + a/3[112]…
Q: What is the optimum pH to separate a mixture of lysine, arginine, and cysteine using…
A: Electrophoresis is a technique that separates amino acids, relying on their net charge and the…
Q: 6E. Estimate the concentration of oxalic acid (HO2CCO2H) of 0.001M dipotassium oxalate (K+ O2C−CO2-…
A:
Q: Consider the titration of 25.00 mL of 0.200 M methylamine (CH3NH2). The titrant is 0.120 M HCI.…
A:
Q: Draw the pyrrole that would form in each of the following reactions
A: Given are organic synthesis reactions. The given reactions are pyrrole synthesis reactions.The name…
Q: Which of the following statements best describes the role NaOH plays in the synthesis of aspirin?…
A: The question is asking about the role of sodium hydroxide (NaOH) in the synthesis of aspirin.…
Q: Calculate the pH of an aqueous solution that contains 0.260 M sodium sulfite and 0.438 M sodium…
A: Ka of H2SO3 = 6.410-8[Na2SO3] = 0.260 M[NaHSO3] = 0.438 M
Q: S
A: The objective of this question is to select appropriate reagents for specific transformation…
Q: Substitution and elimination: predict the product Maximum allowed tries per question: Unlimited (3)…
A: An arrow always depicts from a region of high electron density to low electron density ; that is…
Q: Predict the major product of the following reaction. A OH IV H₂O H2SO4 OH ווו OH £ IV
A: Alkenes are compounds that have double bonds so they have excess pi electron density. Thus they are…
Q: 6. Diprotic oxalic acid (HO2C−CO2H) ionizes in water as follows. HO2C−CO2H + H2O HO2C−CO2- + H3O+…
A: Ladder diagrams are systematic representations showing the major species present in an equilibrium…
Q: MgCl Na2Cr2O7 H2SO4
A: When a Grignard reagent reacts with an oxirane, it undergoes a ring-opening reaction to form an…
Q: Substitution and elimination: predict the product Maximum allowed tries per question: Unlimited (7)…
A: The objective of the question is to predict the product formed in the following reaction given.
Q: Consider the following reaction between calcium oxide and carbon dioxide: CaO (s) + CO2 (g)…
A: The objective of this question is to determine the limiting reactant in the given chemical reaction…
Q: A 1. CH>MgBr 2. H₂O B 0 D 1. KCN 2. H₂O 1. CHILI 2.H₂O* 1. (CH3)2CuLi 2. H₂O* ©
A: Organic reactions can be defined as the reactions in which organic reactants react with each other…
Q: Draw the starting materials needed to complete this Robinson annulation reaction in basic conditions…
A: Robinson annulation reaction involves two reactions Michael addition followed by aldol…
Q: The reaction N2O5- 2NO2 + 1/2 O2(g) is first order. The rate constant k is 6.2 x 10-4/min. A) What…
A: The objective of this question is to calculate the half-life of a first-order reaction and the time…
Q: Write a balanced equation and the Kb expression for the Brønsted-Lowry base CH32NH in water. In the…
A: The balanced chemical equation represents the reaction of methylamine (CH2NH2) in water (H2O) to…
Q: H₂C OH OH H+ CH3 Esters can be synthesized by an acid-catalyzed nucleophilic acyl substitution…
A: Here a step of mechanism of Fischer esterification reaction is given , we have to give arrows in…
Q: The preparations of two aqueous solutions are described in the table below. For each solution, write…
A: of is added to of a solution of is added to of a solution that is in both and We have to…
Q: 8. To draw the structure of major product and relevant arrow-pushed stepwise mechanism: CH3 O | ||…
A: An arrow always depicts from a region of high electron density to low electron density ; that is…
Q: Q.4. Show how 2,3-dimethyl-2-pentene (structure is shown below) synthesized by a Wittig reaction.…
A:
Q: 11. Which of the following would be more stable than gasoline? a. Natural gas b. Kerosene C. Diesel…
A: The stability of a fuel is determined by its resistance to spontaneous ignition and its ability to…
Q: 1. (a) Compound A,B and C are isomers with molecular formula of C4H8O. When compound A,B and C…
A: The objective of the question is to deduce the structures of compounds A, B, and C based on their…
Q: draw the chemical structure of oxalic acid dihydrate, sodium hydroxide and sulphuric acid
A: We have to draw structures of oxalic acid dihydrate, sodium hydroxide and sulfuric acid.
Q: 5) The volume of several aqueous copper sulfate (CuSO4) solutions was precisely measured at SATP.…
A: The objective of this question is to estimate the concentration-dependent partial molar volume of…
Unlock instant AI solutions
Tap the button
to generate a solution
Click the button to generate
a solution
- An experiment was performed in order to determine the concentration of a persulfate ( S2O8^-2) solution 2 I^- (aq) + S2O8^2- (aq) —> I2 (aq) + 2 SO4^2- (aq) A 25.00 mL aliquot of .1500 M KI solution was titrated to a purple blue endpoint with soduim persulfate as the titrant. The intial buret reading was 1.25 mL and the final buret reading was 15.78 mL. Calculate the concentration of the soduim persulfate. Determine the oxidation number of iodine, sulfur, and oxygen in the reaction above and determine which species is oxidized and which is reduced.concentration of I3- : 0.002M d. Titration data: Final volume: 29.05 mL Starting volume: 38.10 mL Delivered volume: 25.15 mL How do you calculate g?How many mL of 0.600 M NaOH should be added to 5.38 g of carbonic acid (H2CO3, FW = 60.02) (pKa1 = 6.351, pKa1 =10.329) to give a buffer with pH = 9.50 when diluted to 250 mL?
- A 0.050M NaOH was titrated against 25.00 mL of the following acids. 0.050M HCl 0.050M HC2H3O2 Calculate the pH at 0 mL, 15.00 mL, 25.00 mL, and 30.00 mL of titrant (NaOH) for each acid above. Note that the Ka for HC2H3O2 is 1.76 x 10-5.Construct a curve for the titration of 20.00 mL 0.0500 N succinic acid (HO2CCH2CH2CO2H) by 0.1000 N NaOH solution. MS Excel® can be used. Titrant volumes: 15.00 mL, 20.00 mL, and 25.00 mL. (CH2)2(CO2H)2 ⇌ (CH2)2(CO2H)(CO2)^− + H^+ Ka1 = 6.21 × 10^-5; pKa1 = 4.207 (CH2)2(CO2H)(CO2)− ⇌ (CH2)2(CO2)2^2− + H^+ Ka2 = 2.31 × 10^-6; pKa2 = 5.636The Merck Index indicates that 10 mg of guanidine,CH5N3, may be administered for each kilogram of bodymass in the treatment of myasthenia gravis. The nitrogenin a 4-tablet sample that had a total mass of 7.50 g wasconverted to ammonia by a Kjeldahl digestion, followedby distillation into 100.0 mL of 0.1750 M HCl. Theanalysis was completed by titrating the excess acid with11.37 mL of 0.1080 M NaOH. How many of thesetablets represent a proper dose for a patient who weighs(a) 100 lb, (b) 150 lb, and (c) 275 lb?
- Double indicator titration of 1.000g powdered sample containing either alone or any compatible mixture of NaOH/Na2CO3/NaHCO3 and the rest are inert components. The sample was dissolved in 20 ml water then titrated with 0.50 M HCl and reach phenolphthalein endpoint at burette volume of 25.55 ml. Continuing titration, it reached methyl orange endpoint at burette volume of 9.45 ml. Calculate the percentage mass of the possible alkaline component/s.A 0.500-g sample containing BaBr2 (FM = 297.14) is dissolved in 50 mL of distilled water. Titrating with 0.0400 M AgNO3 requires 25.00 mL to reach the Mohr endpoint. A blank titration requires 0.50 mL to reach the same endpoint. Calculate the %w/w BaBr2 in the sample. Please provide a complete solution.Given a theoretical acid, HA, with a pKa of 6.52. Calculate the pH of 30.0mL of 0.400M HA, when it is titrated with 0.150M Sr(OH)2 and calculate the pH for the following % titrant: 0.00%, 50.0%, 96.0%, 100.%, 105.% of eq. pt.
- Construct a curve for the titration of 50.0 mL of 0.100 M hydrazoic acid, HN3 (Ka = 2.2 x 10-5) with 0.200 M solution of KOH. Calculate the pH after the addition of 0.00,12.50, 20.00, 24.00, 25.00, 26.00, 37.50, 45, and 50.00 mL of titrant. Identify the specie/species present at the following regions of the curve:a. Start of the titrationb. Before equivalence pointc. At equivalence pointd. Past the equivalence point.Calculate the volume, in milliliters, of 0.170 M NaOH that must be added to 319 mL 0.0439 M 3‑(?N‑Morpholino) propanesulfonic acid (MOPS) to give the solution a pH of 7.55. The pKa of MOPS is 7.18. NaOH volume = mL3, Calculate the pH of a solution prepared by mixing 150.0 mL of 0.200 M hydrobromic acid and 150.00 mL of 0.170 M KOH solution. Group of answer choices 1.82 3.25 2.35 2.18 4,Consider the following: HF + NaOH => H2O + NaF 50.00 mL of 0.200 M hydrofluoric acid (Ka=7.2X10-4) was titrated with 35.0 mL of 0.250 M sodium hydroxide. Calculate the pH of the solution at this point. Group of answer choices 5.46 9.39 4.56 3.99