Q: What is the pH of a solution of 0.12 M of benzoic acid for which PK₁ = 4.20?
A:
Q: Hello, Actual N (from instructor) 0.1003 Looking for % error ____________? Wt.ofoxalic acid (g)…
A: Given data: Experimental value = 0.100 Exact value = 0.1003
Q: What fraction of iminodiacetic acid is in each of its four forms (H, A H,A, HA, A) at pH 3.357? The…
A: pH=3.35=-log [H+]or, [H+]=10-3.35=4.47×10-4
Q: जर तैकट लाएटकेवकाडलल C a1) ह वकम ome
A:
Q: Based from the given problem, What is the percentage purity of the tartaric acid (C4H6O6)? * Part 2:…
A: Tartaric Acid:- It is a white crystalline organic acid that occurs naturally in many fruits and…
Q: What is the pKb of the conjugate base of a weak acid that has a pKa equal to 3.52? (temperature is…
A: Given that : pKa = 3.52 pKb = ?
Q: Write the equilibrium-constant expressions and obtain numerical values for each constant in (a) the…
A: Acid dissociation constant Ka is utilized to determine the acidic and basic nature of a solution. It…
Q: What is the pKb of the conjugate base of a weak acid that has a pKa equal to 5.29 at 25ºC?
A: To get the pKb of the base (B) you MUST subtract the pKa from 14. The reason for this is that the…
Q: Q- Describe the PreParation of 400mLof 6F Hi PO4 from the commercial Salution which is 85 (W/w)…
A: The question is based on the concept of solution preparation. we have been given a stock solution of…
Q: (i) Arrange the following compounds in an increasing order of basic strength :C6H5NH2, C6H5N(CH3)2,…
A: Basic strength of amine depends on electron density of nitrogen.
Q: The bacterial load of a ketchup (pH-3.9) can be reduced from 6,000 units to 6 units in 15 minutes at…
A: A d-value is a term used in biology to find or calculate the total time it takes to reduce a…
Q: Why is it easier to see all three pKa values in a tripolic acid but not all 3 equivalence points?
A:
Q: Which is the stronger base, (CH3)3N or H2BO3− and why?
A: Bronsted-Lowry acid-base theory: The Bronsted-Lowry acid-base theory states that the acid is a…
Q: d The concluctivity of a 0.05 M solution of acetic crid of 12°c is 4-4X10" si'cm'. A of act ecetic…
A:
Q: For a given acid HA, it was determined that at pH 6.0 the concentration of the conjugate base [A]…
A: Percent ionization of HA = [H+]/[HA] *100% pH =6.0 pH = -log[H+] 6.0 =-log[H+] [H+] = inv log…
Q: Be sure to answer all parts. Calculate the following values. (a) What is the pK, of NO₂? (K₂ of…
A:
Q: Guanine, as it would appear at physiological pH, is shown below. One of the pKas of guanine, which…
A: The protonated form at N7 is =NH+- The deprotonated form at N7 is =N- pKa of =NH+ is, pKa = 2.4
Q: Write the equilibrium-constant expressions and obtain numerical values for each constant in (a) the…
A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…
Q: 6. Carbonic acid (H2CO3) has two ionizable protons, with pKa around 6.1 and 10.2. (a) Which species…
A:
Q: Please provide the following for each reaction given below; a. The mechanism for the reaction b.…
A: Note :- Since you have posted a question with multiple sub-parts, we will solve first three sub-…
Q: Calculate the [H3O+][H3O+] of oranges with pH=3.50pH=3.50 .
A: We are having oranges with pH=3.50 pH = - log [H3O+]
Q: Write the equilibrium-constant expressions and obtain numerical values for each constant in (a) The…
A: The acids are the compounds that lose H+ and bases are the ones that accept H+. The acidic salt also…
Q: R - NH2 NH. HO NH DCC,THF NH RT, N2 (atm.) Вос `NH2 Вос `NH2 6(b-e) R= -CH,CH(CH,),.(2b) -CH,Ph,(2e)…
A: The reaction involves deprotection of amine group and results in formation of desired heterocyclic…
Q: Will dilute sulfuric acid also be able to precipitate benzoic acid from a solution of sodium…
A: Yes.
Q: When a compound like naplhthalene C1oHa is dissolved in t-butyl methyl ether, then that solution is…
A: Extraction is a technique to separate the required compound from impurities by transferring them…
Q: an AUDIO tutorial is available for this problem. Species of arsenic found in drinking water include…
A: A) 0.37, 0.38, 0.35, 0.39, 0.39, 0.35nd 0.38 Mg/L mean = sum of all terms / no of terms means =…
Q: KMNO4, OH" cold and dilute cis pent-2ene + peroxyacetic acid in water
A: The products of given reaction are drawn as,
Q: I need a tutors help in understanding 4) a. and B).
A: a) Step1: Identify the equality relationship between m and mm. 1 m = 1000 mm Convert for 66 m. 66 m…
Q: + O2 (g) → 2 NO2(g) Calculate AGrxn at: a) 25 °C
A: The question is based on the calculation of Gibbs free energy change. we have been provided a…
Q: 6. The following compound is a carboxylic acid that contains a bromine atom: C4H,O2B.. The peak at…
A: Given carboxylic compound is C4H7O2Br. The structure of the compound has to be determined.
Q: Based from the given problem, What is the percentage purity of the tartaric acid (C4H606)? Part 2:…
A: Answer:- This question is answered by using the simple concept of calculation of percent purity of…
Q: (b) Calculate the pH of 0.0005 mol dm³ ethanoic acid when its pK₁ = 4.75 CH3COOH → CH3COO(+ H* K₁ =…
A: Given, [CH3COOH]=0.0005 mol dm-3 pKa=4.75 pH=?
Q: Acetic acid (CH3COOH, abbrev HA) is a very common weak acid with pKa = 4.75 (at 25oC and low ionic…
A: We are authorised to solve only first three subparts of a question. Please post rest of the subparts…
Q: Predict the structure of the product formed in the reaction of the organic base pyridine with the…
A: The question is based on the concept of organic reactions. We have to identify the product of the…
Q: Molecule A is C6H9O2F and an aqueous solution of 0.0130 M of molecule A has a pH of 1.0 . Calculate…
A:
Q: i. NaH, DMF ii. CH3CH₂Br iii. NaOH, H₂O iv. H₂O*, heat ?
A:
Q: Benzoic acid (C6H5C02H) has Ka =6.3 x 10-5 a) What is the value of Kb for the benzoate ion…
A: We have given benzoic acid ( C6H5COOH ). The equation of the reaction becomes :C6H5COOH + H2O →…
Q: compound With chemical formol a cqH10 0 Resolts of chemical te st for C4HI0O +|- chemical Test…
A:
Q: Acetic acid (CH3COOH, abbrev. HA) is a very common weak acid with pKA = 4.75 (at 25oC and low ionic…
A:
Q: Consider acid acid and trifluoroacetic acid. The pKa of acetic acid is 4.75. VWhich of the…
A: Note: a,b are false because pka valude of trifluoroacetic acid is lower than acetic acid. The…
Q: The base B has pKb 4.00. Find the fraction in the form B and the fraction in the form BH at pH …
A: a.
Q: 15.What would be the pH of a 0.25 M solution of phenylamine (C6H5NH2) at room temperature? The Kb of…
A: Given: Concentration (C) of C6H5NH2 = 0.25 M Kb = 4 × 10-10 As C6H5NH2 is a weak base So POH…
Q: 5. Calculate AGreaetion for the following reaction involving butyrate and acetate: CH;CH2CH2COO +…
A: Given: Concentration of butyrate = 0.01 M Concentration of acetate = 0.01 M pH of solution = 7…
Q: Write the equilibrium-constant expressions and obtain numerical values for each constant in…
A: (a) Aniline is a base; therefore the Kb will need to be calculated from the Ka which is equal to.…
Q: A 50.00 mL sample of white dinner wine required 28.54 mL of 0.03867 N NaOH to achieve a…
A:
Q: d) Write an expression which shows how the acid dissociation constant, Ka, of ethanoic acid…
A:
Q: 5.00 mL of stock solution is diluted to 25.00 mL, peoducing solution ALPHA. 10.00 mL of solution…
A: Since your question has multiple sub-parts, we will solve only the first 3 sub-parts. If you want…
Q: if the pKa value for p-nitrophenol is 7.08, what fraction of it exists in its ionized form at (a) pH…
A: Henderson's equation for buffer solutions is :
i just want an answer in #6
Step by step
Solved in 2 steps with 2 images
- Sulfuric acid (H2SO4) is a strong acid in aqueous solution, yet the pKa of sulfuric acid is 7.6 in acetonitrile (CH3CN). Explain how this can be in terms of the relevant equilibria and the properties of the two solvents.Acetic acid (CH3COOH, abbrev. HA) is a very common weak acid with pKA = 4.75 (at 25oC and low ionic strength). Calculate pH of the diluted solution of acetic acid with concentration c = 0.05 mol dm-3.What is Kb for the equilibrium rreacton: CN- + H2O <=> HCN + OH- ? Ka value of 6.23 x10-10
- At 25oC, Ka for acid dissociation of aspiring (C9H8O4) is 3.0 x 10-4. Calculate ΔGo for the reaction C9H8O4 (aq) + H2O(l) H3O+(aq) + C8H7O4-(aq)What is the pH of a saturated solution of sodium carbonate? (Solubility in water is 21.6g/100ml at rtp and for carbonic acid Ka1 = 4.5×10^-7, Ka2 = 4.7×10^-11)Acetic acid (CH3COOH, abbrev HA) is a very common weak acid with pKa = 4.75 (at 25oC and low ionic strength) A] Write down the dissociation equation of the weak acid HA in aqueous solution, derive the respective formulae for the dissociation constant Ka and pKa. B] Calculate pH of the diluted solution of acetic acid with concentration, c = 0.05 mol/dm3 C] What is the approximate pH of the aqueous acetate buffer solution composed of dissolved mixture of acetic acid (HA) and sodium acetate (NaA) in the same respective concentrations? What is the working pH range of acetate buffers? D] How can you prepare exactly 1 dm3 of acetate buffer solution with required pH 5.0 and the total concentration [HA + NaA], c = 0.01 mol/dm3 if the stock solution of acetic acid (HA) with concentration, cHA = 0.1 mol/dm3, anhydrous sodium acetate (NaA, MT = 82.03 g/mol) and purified water are available? E] Acetate buffer solution may be also prepared by the partial neutralization of HA with NaOH: 20 cm3 of…
- How to prepare 250cm3 of a solution of carbonate with concentration 0.100 mol dm-3What is ΔSsurr for a reaction at 19 °C with ΔHsys = -7.3 kJ mol-1 ? Express your answer in J mol-1 K-1 to at least two significant figures.At constant pressure and 25°C, what is ΔrH° for the following reaction2C2H6(g) + 7O2(g) → 4CO2(g) + H2O(l)if the complete consumption of 14.5 g of C2H6 liberates 752.3 kJ of heat energy?
- The Ka of HCHO2 is 1.8 x 10-4. Calculate the ΔGº (in kJ/mol) for the acid dissociation reaction at 25ºCAt 25oC, Ka for acid dissociation of lactic acid (HC3H5O3) is 1.0 x 10-4. Calculate ΔGo for the reaction HC3H5O3 (aq) + H2O(l) H3O+(aq) + C3H5O3-(aq)At constant pressure and 25 C, what is the Delta rH for the following reaction: 2C2H6 (g) + 7O2(g) --> 4CO2(g) + H2O(l) if the complete consumption of 12.5g of C2H6 liberates 752.3 kJ of heat energy?