7-43. Supply the missing data in the table below. Molar Analytical Concentration, cT Acid (cr = cHa + ca-) pH (HA] [A¯] Lactic 0.120 0.640 lodic 0.200 0.765 Butanoic 5.00 0.0644
Q: он H+ How do you draw the strocture of the transition staic for rate-driomnining siep?
A:
Q: The freezing point of cyclohexane is 6.50°C. For cyclohexane solvent Kf=20.0. 0.140 g of an unknown...
A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...
Q: 7. Describe which of the following is unsaturated, saturated, or supersat- urated? All solutions are...
A:
Q: If the decomposition of (NH4)2(CO3) is a first-order process with a rate constant of 0.129 s-1, how ...
A: Given- Rate constant =0.129s-1 Concentration= 0.957M t=16.4s
Q: 2
A: Mass of AgCl = 0.1987 gram Molar mass of AgCl = 143.37 g/mol
Q: 72.03 g of water at 40.9oC added to a calorimeter containing 55.87 g of water at 22.2oC. After stirr...
A: Given: Mass of warm water = 72.03 g. Mass of cold water = 55.87 g. Initial temperature of warm water...
Q: How many grams of N2 are needed to make 444 g of NBr3 ? N2 + 3 Br2 → 2 NBr3 + 44.0 kJ ...
A:
Q: At high temperatures, bromine molecules can dissociate into bromine atoms. For the reaction Br₂(g) ...
A:
Q: Which of the following species is the strongest acid in an aqueous solution? CH3CH2CO2H CH2ClCO2H Ch...
A: Acidity, means the ability to release proton in a medium.
Q: Calculate AG°pxn for the following reaction at 449.0°C. CH20(g) 2 H2 (g) → CH4(g) H20(g) AH° = - 94....
A: Answer: Given data: ∆H°=-94.9kJ∆S°=-224.2J/KT=449°C
Q: How many moles of NH₃ can be produced from 4.98 moles of nitrogen in the following reaction: N₂ (g) ...
A: Given :- N₂ (g) + 3 H₂ (g) → 2 NH₃ (g) No.of moles of N2 = 4.98 mol To calculate :- No.of moles ...
Q: An aqueous solution contains 0.18 M ammonium chloride. One liter of this solution could be converted...
A: Buffer solution: buffer solution is an aqueous solution consisting of a mixture of a weak acid and ...
Q: Description (1) On a piece of paper, please draw the schematic of the Electron-Transfer-Chain (ETC) ...
A: 1) diagram attached in description . 2) 2 electron
Q: The reaction of sulfur dioxide(9) with oxygen(9) to form sulfur trioxide(9) proceeds as follows: 250...
A: Given, Mass of sulfur dioxide (so2) = 24.1 g For the reaction of 24.1g of so2 heat evolved is 37.2 ...
Q: Explain how an El reaction that generates an alkene may be reversible under the reaction conditions ...
A: Here we have to explain why E1 reaction is reversible under reaction conditions but E2 reaction is i...
Q: How many grams of N2 are needed to completely (stoichiometrically) react with 222 g of Br2 ? N2 ...
A:
Q: Be sure to answer all parts. A 35.00-mL solution of 0.2500 M HF is titrated with a standardized 0.16...
A:
Q: Elements that have four valence electrons are classified as _____.
A:
Q: Above solution: 0.140 g of an unknown solute is dissolved in 7.88 g of cyclohexane (C6H12). The free...
A:
Q: In determining the enthalpy of neutralization of a strong acid-strong base reaction, three students ...
A: We would calculate moles of base ( NaOH ) added initially. Then for each student we calculate the ...
Q: Which of the following statements is true of the acid–base properties of common cations and anions i...
A: Given statements are : a. The anions that are conjugate bases of strong acids are strong bases. b. T...
Q: Atkins P2.7 The molar heat capacity of ethane is represented in the temperature range 298 K to 400 K...
A: This question is related to finding out the heat of enthalpy at different temperature rather than 29...
Q: An extremely soluble salt is added to water, and all of it dissolves. Is it at equilibrium? Explain ...
A: Given : Equilibrium is defined as when the concentration of reactants become equal to concentration ...
Q: O at% Ag = 0 wt% Ag Composition Composition Temperature Composition (at% Ag) Temperature = 392 °F %3...
A: We have find out mass fraction.
Q: 2. Find the EW of Sodium Bicarbonate (NaHCO3) has a valence charge of 1. (Use whole numbers for each...
A:
Q: Considerr the following endothermic reaction. A(aq) + B(aq) = C(aq) + D(aq) K = 1X100 A solution is ...
A:
Q: Solubility of Ca(OH)2 in 0.25M KCI Answer the concentrations and solubility in 3 significant figure....
A: From the standardization of HCl data, average molarity of HCl = 0.198 M We can find the [OH-] by u...
Q: Estimate the AK, of the acid used in the titration of which the curve is illustrated below? The axis...
A: Given graph : At equivalence point, pH = 9.1 (approx). At Half-equivalence point, pH = 4.70 (approx...
Q: Which or the following pure liquid substances will exhibit H-bonding intermolecular forces? CH3(CH2...
A: Answer: Among different type of different intermolecular forces, hydrogen bonding is one of the type...
Q: A solution which contains 50.1 g of an unknown molecular compound in 315 g of water freezes at -5.56...
A:
Q: A 1.0 liter solution contains 0.25 M hydrogen fluoride (HF) and 0.38 M sodium fluoride (NaF). What i...
A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The buffe...
Q: What is the order of reaction with respect to the concentration of CIO2? Use the given reaction rate...
A:
Q: Titration of 0.1615 g of an unknown monoprotic acid dissolved in 25.00 mL of water requires 21.84 mL...
A: Given, An unknown monoprotic acid (HA) Molarity of NaOH solution = 0.1231 M = 0.1231 mol/L Volume o...
Q: Which of the following does NOT describe Arrhenius acids and bases? O a. It is only applicable for a...
A:
Q: Using the table below. Determine the slope of each tangent with proper units. Calculate and record t...
A: Given data:
Q: Consider the following reaction: 2A + B + 3C. (a) Write an expression for the overall rate; (b) What...
A: Answer: Given chemical reaction is: 2A+B→3C It means, 2 mole A is reacting with 1 mole of B to produ...
Q: How will you prepare a 0.1 L, 0.10 M buffer with pH of 6.7 if you have the following: sodium dihydr...
A: Buffer solution is resistant to pH changes on addition of small amount of acid or base. It is a mixt...
Q: A diprotic acid (H2AH2A) has p?apKa values of 4.934.93 (p?a1pKa1) and 9.869.86 (p?a2pKa2). Which of ...
A: Given data : Diprotic acid H2A pKa1 = 4.93 pKa2 = 9.86
Q: 1. The molecular diameter of cO (MW 28.02 g/mole) is 3.19 x 10-8 = cm. At 300K and a pressure of 100...
A: Average speed of CO is given by; Vavg = 8RTπ M Where, Vavg = Average speed, R = Gas constant = 8.314...
Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.68 kg sample ...
A: The mass of the substance is = 1.68 kg The increase in the temperature of the substance is = (24.8-2...
Q: ow.com/ilrn/takeAssignment/takeCovalentActivity.do?locator=Dassignment-take [References] The combust...
A:
Q: A=[0.30],[0.60],[0.30] (mol/l) B=[0.15],[0.30].[0.30] (mol/l) C= 7.0 x 104,2.8 x 103,1.4 x 103(mol/L...
A:
Q: How many stereoisomers are formed in the reaction below? Please note: both alkenes will react under ...
A:
Q: 5B.11(a) The vapour pressure of pure liquid A at 300K is 76.7kPa and that of pure liquid B is 52.0kP...
A:
Q: hat is the pH of a 0.080 M aqueous solution of methylamine, CH3NH2? The Kb for methylamine is 4.4x10...
A: Given : We have to calculate the pH.
Q: 3. The mercury in a 1.0023-g soil sample was precipitated with an excess of paraperiodic acid, HŞIO6...
A: Given: Mass of Hg5(IO6)2 = 0.4996 g. And mass of sample used = 1.0023 g.
Q: What is another factor that can influence fractional distillation’s success other than the number of...
A: Distillation process involving conversion of liquid into vapours that subsequently condensed back to...
Q: 4. Calculate the molarity of each of the following solutions: (a) 10.0 g H,SO, in 250 mL of solution...
A: 4) Molarities of the NaOH, H2SO4 and AgNO3 solutions ? 5) Molarity of original solution ? 5) Volume ...
Q: 5. Calculate the mass of CO2 evolved in the complete decomposition of a 2.943-g sample. containing 4...
A: Metal carbonate salt upon dissociation gives carbon dioxide and metal oxide. Write down the decompos...
Q: What is meant by the phrase, "the binding constant is determined by how fast things come together an...
A:
![7-43. Supply the missing data in the table below.
Molar Analytical
Concentration, c-
Acid
(Ct = CHa + Ca-) pH
(HA]
[A^]
Lactic
0.120
0.640
Iodic
0.200
0.765
Butanoic
5.00 0.0644
Hypochlorous
0.280
7.00
Nitrous
0.105 0.413
0.587
Hydrogen
cyanide
Sulfamic
0.145 0.221
0.250
1.20](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb344e0a9-f014-4688-95be-e20b015d5a74%2F50bcd4e5-2f45-48ed-af92-607b1fc619c8%2Fam64f6a_processed.png&w=3840&q=75)
Trending now
This is a popular solution!
Step by step
Solved in 5 steps with 1 images
- 7-43. Supply the missing data in the table below. Molar Analytical Concentration, c- (ct = Cha + cx-) pH (A"] Acid (HA] Hypochlorous 0.280 7.00 Nitrous 0.105 0.413 0.587 0.145 0.221 Hydrogen cyanide Sulfamic 0.250 1.205. a) The Kw value that we normally use is for room temperature (25°C). Calculate the equilibrium H+ concentration and pH of pure, neutral water at 0.0°C (Kw= 1.14 x 10-15at 0.0°C) b) Methylamine (CH3NH2) is a derivative of the weak base ammonia. Write the equation for the ionization of methylamine in water, and use the I.C.E. method to find the pH of a 3.75 M CH3NH2 solution.(Kb= 4.37 x 10-4at 25°C)How to write the methodology? I have a practical of the MEASUREMENT USING PH METER, I don't know how to write the methodology. Here is the introduction: A pH meter is an electronic device mainly used for qualitative measurement, for thedetermination of acid and the basic value of a solution. Generally, it measures thehydrogen ion concentration/activity [H+] in a solution. It is denoted as:pH = - log10 [H+]In a pure water solution, the concentration of [H+] and [OH-] ions, respectively, rangefrom 1.0 x 10-1 M to 1.0 x 10-14 M. When [H+] is equal to [OH-] as when pure waterdissociates, the hydrogen ion concentration of pure water is equal to 1.0 x 10-7 M orpH = 7.00, defined as a neutral solution at 25°C, to be of temperaturedependent/endothermic dissociation.[H+] = [OH-] = 1.0 x 10-7 MWhen an ionic or polar substance is dissolved in water, it may change the relativenumbers of H+ and OH-. The higher the pH number, the lower the hydrogen ion concentration, and vice versa. Solution with an…
- Case 3: pH with known K: The dissociation of ammonia (NH3) in water is shown below: NH3 (aq) + H2O (m = NH4*(aq) + OH-(aq) At 25°C, Kb, is 1.8 × 10-5 (7) Calculate the pH of a mixture of 0.192 mol NH3 and 0.116 mol NH4C1 diluted to 400.0 mL with distilled water.Ex. 13-5. A 50.00-mL of an HCl solution required 29.71 mL of 0.01963 M Ba(OH)2 to reach an end point with bromocresol green indicator. Calculate the molarity of the HCl. Ва(ОН)2 + 2HCІ- ВаCl, + 2H-0Full acid, HOOC = CH-COOH is a biphatic acid and we will label it as H2M. Acid constant data for the two protonation phases of the acid: K H.M+H2O = H, 0++HM- HM +H2O = H, 0++M2– a1 = 1.3x10-2 K.2 = 5.9 x 10-7 Measure 0.1 ml of 0.100 M of malic acid with 0.100M NaOH and measure the H variability as a function of the added base volume. A. Calculate the PH value at the beginning of the titration. B. Calculate the pH value at the first equivalent point. C. Calculate the pH value at the second equivalent point. D. Draw the titration curve in the graph. Indicate in the graph titles and units for the axes.
- 7:30 1 y short X Powe X RI Anno x ! Ceng x PI TURUE A TINA A y weba x Piese y chem 101 Chem X i app.101edu.co Time's Up! Construct the expression for Ka for the weak acid, HCN. HCN(aq) + H.O(1) = H.O (aq) + CN (aq) Based on the definition of Ka, drag the tiles to construct the expression for the given acid. Ka = 5 RESET [H:O] [H.O'] [OH] [HCN] [H:CN') [CN] 2[H:O] 2(H.O) 2[OH] 2(HCN] 2[H.CN'] 2(CN] [H:OP [H.O'P [OHP [HCNJ" [H:CNP [CNPIn the determination of the water hardness of a river water sample, the pH of the sample was adjusted to 12 instead of 10. Is there a positive error, negative error, no effect, or error could not be determined In terms of the ppm CaCO3 of sample?In the experiment, we used titration to determine the total acid content ofsamples, which we reported in terms of molarity. Reporting acidity through pHmeasurements is quite different, in that we can only measure the amount of theacid in its ionized form. You were tasked to investigate a clear aqueous solutionof an unknown monoprotic acid. You decided to use two methods togather data.Method 1 – TITRATION: A 10. mL aliquot of the sample was diluted with 25 mLdistilled water. Two drops of phenolphthalein were added and then it was titrated3.54 mL of 0.048 M standardized NaOH to the endpoint.Method 2 – pH STRIP: You took 1 mL of the sample and used a pH strip toestimate the pH, which turned out to be around 3.3. Another 1 mL of the samplewas diluted with 9 mL of water. The pH was taken again and is now around 3.8.a) Calculate the molarity of the acid using the titration data.b) If we assume that the titrated unknown is a strong acid, predict thepH of the sample.c) Using pH strip results,…
- A solution of acetic acid CH3COOH, on a laboratory shelf was of undetermined concentration. If the pH of the solution was found to be 2.68, what was the initial concentration of the acid? Ka=1.7x10-5 Ethanolamine, HOC2H4NH2, is a viscous liquid with an ammonia-like odour used to remove hydrogen sulphide from natural gas. A 0.15 mol dm-3 aqueous solution of ethanolamine has a pH of 11.34. What is kb for ethanolamine? What is the concentration of hydroxide ion in a 0.060 mol dm-3 aqueous solution of methylamine, CH3NH2? What is the pH? Kb=4.4x10-412) Calculate the [H*], pH, and pOH for a 100.00mL of 0.00250M HCI at 25°C. [H*] = pH pOH = M %3DThe pH for 0.0850 M solution of CoHsCH2COOH is 2.68. Determine the value of Ka for CoHsCH2COOH. 1 NEXT > Based on the given values, fill in the ICE table to determine concentrations of all reactants and products. C&H:CH2COOH(a_ H2O(1) H;O*(aq) CoHsCH2CO0 (aq) q) Initial (M) Change (M) Equilibrium (M) RESET 0.0850 2.68 -2.68 2.1 x 10-3 -2.1 x 10 3 0.0829 -0.0829 0.428 -0.428 +x 2.68 + x 2.68 - x 2.1 x 10-3 + x 2.1 x 10-3-x 0.428 + x 0.428 x