Given the following data, Base K, NH3 1.8 x 10-5 CH3NH2 5.0 x 10-4 C6 H6 NH2 4.2 × 10-10 Calculate the pH of 0.62 M solutions of 1. NH¼NO3 pH = 9.26 2. CH3NH3 NO3 pH = 10.7 3. C6 H; NH3NO3 pH = 4.62

Q: Calculate the ph of 1.55 M CH3NH2. The Kb for CH3NH2= 4.4 x 10^-4

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Q: What is the pH of a 0.360 M solution of C₅H₅NHBr (Kb of C₅H₅N is 1.7 × 10⁻⁹

A: Given data--> C= 0.360 M solution of C5H5NHBr Kb=1.7*10-9   pkb = - log10(1.7*10-9) pkb= 9 -…

Q: 0.92 M

A: From Henderson equation we know that    pH = pKa + log [salt] / [acid ]   ............ (1)

Q: Brønsted-Lowry base

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Q: Determine the [SO3²-] in a 0.020 mol L-1 solution of sulfurous acid, H2SO3 H20(1) = HSO3 (aq) +…

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Q: Label acidic basic or neutral: (you will first need to find the pH) 9.5 x 10^-11 M NH3

A: As per the given data Concentration of NH3=9.5×10-11MpH=?

Q: Identify the Acid in the reaction  H2O + Cl- → HCl + OH-

A: Acid has pH value less than 7 and base has pH greater than 7. If pH=7 , then species is neither…

Q: What is the pH of a 0.420 M solution of C₅H₅NHBr (Kb of C₅H₅N is 1.7 × 10⁻⁹)

A: Given, Concentration of C₅H₅NHBr = 0.420 M Kb = C₅H₅N is 1.7 × 10⁻⁹   pKb=-[logkb]pKb=-[log 1.7 ×…

Q: What is the pH of 0.15 M solution of acetic acid (CH3COOH) Ka=1.75 x 10^-5 A) 2.6 x 10^-6 B) 0.0016…

A: Calculating pH of the acetic acid. CH3COOH + H2O <----------> CH3COO- + H3O+

Q: a. [CH3 COOH] = 0.85 M, [CH;CO0-] = 0.45 M (the pK, for acetic acid is 4.74) pH = b. [Н,РО, ] 3 0.50…

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Q: Given the equilibrium equation below, which of the following is FALSE? HC6H606 + NH40H = NHẠC6H606…

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Q: Calculate the pH of a 0.355 M solution of propanoic acid, for which the Ka value is 1.30 x 10-5.

A: Given : concentration = 0.355 M               Ka = 1.30 × 10-5

Q: Calculate the pH of a 0.0470 M aqueous solution of the weak base methylamine (CH3NH2, Kb =…

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Q: Determine the pH and hydrogen ion concentration in a 0.1425M solution of ethylamine, C2H5NH2 at…

A: Here, we have to calculate the pH and hydrogen ion concentration in a 0.1425 M solution of…

Q: Calculate the pH of an 0.025 M solution of NH3. NH3 is a weak base. Kb = 1.80 x 10-5

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Q: Claculate the pH of a solution prepared by dissolving 0.37 mol of formic acid (HCO2H) and 0.23 mol…

A: Given : moles of HCO2H = 0.37 mol Moles of NaCO2H = 0.23 mol Volume of solution = 1.00 L And Ka of…

Q: How does the acidity of ocean water at pH 8 compare to distilled water at pH? which one of the…

A: Acidity is compared based on the [H+] in the solution. Greater the value of [H+] greater will be the…

Q: Calculate the PH of4.6M formic acid (CHOOH)  solution given a ka value of 1.787*10^-4

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Q: 2. A 0.0560 g quantity of acetic acid is dissolved in enough water to make 50.0 mL of solution.…

A: Welcome to bartleby !

Q: Fill in each blank cell with the correct value pH [H*] (mol/L) POH 11.7 5.1 x 10-5 2.3 12.2 [OH-]…

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Q: Calculate the pH of a 0.429 M aqueous solution of formic acid (HCOOH, Ka = 1.8 x 10-4).          pH…

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

Q: Calculate the pH of a solution that is 0.112 M in sodium formate (NaHCO2) and 0.266 M in formic acid…

A: The given information is: Conc. of sodium formate (NaHCO2) = 0.112 M Conc. of formic acid (HCOOH) =…

Q: Calculate the [H+] in each of the following solutions, and indicate whether the solution is acidic…

A: Given data: 1). [OH-] = 2.32 x 10-4 M 2). [OH-] = 8.99 x 10-10 M 3). [OH-] = 4.34 x 10-6 M 4). [OH-]…

Q: Consider the set of compounds shown below. он OH ORG GAN NIC MM = 94 g/mol MM = 96 g/mol MM= 100…

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Q: The pH of a 0.11-M solution of chloroacetic acid (CH2ClCOOH) is measured to be 1.95. Use this…

A: pH = 1.95  Concentration (c) = 0.11 M For weak acid pH formula is, pH = 1/2(pka - log(c)) 1.95 =…

Q: What is the pKb of an unknown weak acid if the pH of the solution was measured to be 4.52. when…

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Q: Which of the following acids has the weakest conjugate base?     Chlorous acid, Ka = 1.1 x 10-2…

A: The strongest an acid , the weakest is its conjugate base.  The acid which has highest Ka value is…

Q: Calculate the pH and the equilibrium concentrations of HC6H6O6- and C6H6O62- in a 0.2410 M ascorbic…

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Q: The pH of a 1.4M solution of 3-hydroxypropanoic acid (HC₂H₂O3) is measured to be 2.18. Calculate the…

A: Given-> Concentration of 3-hydroxypropanoic acid = 1.4 M pH = 2.18

Q: Acetic acid has a Ka = 1.8 x 10- 2 points 5 Determine the pH of a O.2 M acetic acid solution *…

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Q: HCl is the acid and OH is the base. ¯ Express your answers as a chemical expression. ΑΣφ HCI + OH¯ =…

A: Ka represents the acid dissociation constant of the weak acid. It is as shown below:

Q: Identify the following species: Strong Acid Strong Base Weak Acid Weak Base Salt  CaBr2 Strong Acid…

A: The species that donate a proton is known as acid and the species that gains a proton is base.…

Q: 2. Write the dissociation equation and equilibrium constant expression for the dissociation of the…

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Q: What is the conjugate acid of H2C6H7O5 -1aq2? What is its conjugate base?

A: Given: H2C6H7O5-1

Q: Solving reactions (Aldehydes and Ketones)

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Q: Find the pH of a 0.01 M solution of acetic acid, CH3COOH.The Ka = 1.75x10-5

A: Given that:                                  Molarity of acetic acid = 0.01 M                 Acid…

Q: What is the pH of a 0.419 M C6H5CO2H M solution if the Ka of C6H5CO2H is 6.5 *10^-

A: pH of a solution is related to the concentration of H+ ions in the solution and is given by the…

Q: Calculate the pH of a 0.080 M solution of the weak base pyridine  C5H5N: Kb= 1.7 x 10-9

A: There are two types of bases/acids. One is strong base/acid which is completely dissociable in into…

Q: [OH] - 1.6 x 10 8 M [H*]- M PH - POH - [OH']-8.2 x 10 12 M [H*)- DH - POH -

A: Interpretation- To determine the  concentration of [ H+ ] , pH and pOH in the given question.…

Q: What is the pH of a solution with [OH-]=2.2 x 10^-7M? Calculate the pH of a 0.0500M solution of…

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Q: Calculate the [OH-] and the pH of a solution with an [H*] = 8.2 × 10-12 M at 25 °C. -9 [OH"] 1.2 x10…

A: Answer given as follows

Q: Find the pH of a solution 1.6 M in ethylamine CH3CH2NH2. For CH3CH2NH2  Kb=5.6x10-4. Report your…

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Q: One component of sour milk is lactic acid (HC3H5O3). What is the pOH of 0.30M lactic acid? (Ka =…

A: pOH of weak acid can be calculated by first calculating the pH of solution.

Q: What is the pH of 0.121M C6H5CH2COOH? C6H5CH2COOH + H2O ⇌ H3O+ + C6H5CH2COO- Ka = 4.9 x 10-5

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Q: Given the following data, Base K, NH3 1.8 x 10-5 CH3NH2 5.0 x 10 C6 H6 NH2 4.2 × 10-10 Calculate the…

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

Q: Calculate the pH of a 0.345 mol L-1 solution of formic acid, Ka = 1.8 x 10-4. Select one: a. 3.17…

A: Given: Concentration of formic acid = 0.345 M Ka of formic acid = 1.8x 10-4  To Calculate: pH of the…

Q: ROUND YOUR ANSWER TO 3 SF ONLY Calculate the pH change that occurs when 1.00 g of NaOH is added to…

A: (1) Initially, calculate the pH of the NH3 solution. The ICE table for the NH3 solution is expressed…

Q: Given [OH-] = 1.75 x 10-4M, calculate [H3O+]. A. 1.25 x 10-4M B. 8.0 x 10-11M C. 5.71 x 10-11M…

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Q: Calculate the pH of a solution that is 0.111 M in sodium formate (NaHCO2) and 0.253 M in formic acid…

A: The solution contains formic acid which is a weak monoprotic acid and salt of its conjugate base i.e…

Q: A certain organic amine acts as a mono acid base in an aqueous solution. A 0.05M solution has a…

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Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.