Calculate the pH of a solution when 32.0 mL of 0.200 M formic acid (HCOOH, Ka = 1.77 x 10-4) is titrated with 26.0 mL of 0.050 M NaOH. Answer to two decimal places

Q: The activation energy for the gas phase isomerization of cis-cyanostyrene is 193 kJ.…

A: Given: Rate constant (k1) at 678 K = 5.20×10-4/s Rate constant (k2) = 3.97×10-3/s Activation energy…

Q: . Hydrogen is the lightest substance known, it would react with any element, however, within the…

A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first question out…

Q: Differentiate boat and chair conformation by drawing. Which is more stable.

A:

Q: 2. Take the reaction: NH3 + 02 → NO + H2O. In an experiment, 3.25g of NH3 are aliowed to react with…

A:

Q: Vhere possible, classify these systems as reactant-favored or product-favored at 298 K. If the…

A: Exothermic reactions are product-favoured beacuse the product is more stable than the reactants and…

Q: A 28.40-mL sample of liquid bleach (contains NaOCI; 74.44 g/mol) was diluted to a final volume of…

A:

Q: Under standard conditions (298 K and 1 atm), which statement is true? under standard conditions.…

A: 1. Under standard conditions (298K and 1 atm) ,  Answer- A. Diamond converts to graphite…

Q: Balance the reactions below using the change in oxidation number method. 1. PBO2 + HBr → PbBr, + 0,…

A: Gaining of electrons is called as Reduction Losing of electrons is called as Oxidation.

Q: When 0.215 g of sodium metal is added to an excess of hydrochloric acid, 2230 J of heat are…

A:

Q: A salt unknown containing ferrous ion was dissolved and diluted to 407.8 mL. A 47.56- mL aliquot of…

A: Given : Cf = 0.6961 M Vf = 16.34 ml M  = 5 mol Va  = 47.56 ml   Finds :  To calculate Mass of iron…

Q: According to this H NMR spectrum, identify the structure of the compound. the only additional…

A:

Q: For the reaction 2NO(g) + 2H2(g)N2(g) + 2H2O(l) H° = -752.2 kJ and S° = -351.6 J/K The standard…

A: Given reaction is :  2NO (g) + 2H2 (g) ---------> N2 (g) + 2H2O (l) Standard change in enthalpy =…

Q: Balance the reactions below using the change in oxidation number method. PbO2 + HBr → PbBr, + O, +…

A:

Q: N. IZ

A:

Q: 8. Balance the following equations using the half-reaction method. a ) Ba (s) + Cl2 b) Zn (s) + S0,…

A: (a) Given that -  Ba(s) + Cl2 -----> Ba2+ + Cl-    Devide into two parts -  Ba ------> Ba2+…

Q: 3. If I place 2.5 moles of O2, 3.5 moles of CO, and 4.5 CO, in a 42 L container at a temperature of…

A:

Q: What is the equilibrium constant, Keq, if the equilibrium concentrations are as follows: PCl5 is…

A:

Q: 2) When water is introduced into an ester under high temperature conditions, esters are hydrolyzed…

A:

Q: Draw structures for the carbonyl electrophile and enolate nucleophile that react to give the aldol…

A: ->In presence of base or acid alpha hydrogen containing carbonyl compound form nucleophile.which…

Q: Question 2: Suppose your supervisor gave you two beakers, one containing 0.1 gm of HCl (mat-1) and…

A:

Q: 2. SAMPLE # 2 crucible, cover, unknown hydrate 18.1352g crucible and cover |5. \4० ४ sample 2.9944…

A: Mass of crucible, cover and unknown hydrate 18.1352 g Mass of crucible and cover 15.1408 g Mass…

Q: Match the given organic compound with uses for which it is suitable (one usage can be matched with…

A: To match the organic compound with the uses. Since you have asked multiple sub-part question, we…

Q: 5. A heat engine operates in a reversible cycle consisting of the following steps: a. Adiabatic…

A:

Q: Aniline, the molecule pictured above, is 0.125 M with a volume of 350 mL and is titrated with 0.250…

A: Given data,Molarity of aniline=0.125MVolume of aniline=300mLMolarity of HBr=0.250MKb of…

Q: new coin having a mass of 2.5133 g is dissolved in nitric acid and only the resulting copper ions…

A: Nitric acid is a strong oxidizing agent. It can oxidize metals to their respective cations.

Q: A system does 566 kJ of work and loses 216 kJ of heat to the surroundings. What is the change in…

A:

Q: What is the correct Ksp expression for the sparingly soluble salt lead(11) chloride? Ksp = [Pb4+]…

A:

Q: [CLO-2] Which of the following changes can influence all structres (primary, secondary etc) O pH…

A: There are four levels of protein structure.    1. The sequence (order) of amino acids in a protein…

Q: Answer whether it is true and false. Please provide the explanation. Thank you Ma'am/Sir! 1. The…

A:

Q: What is the concentration in %m/v of a 0.607 M aqueous solution of dimethyl ether (MM = 46.07…

A: In multiple questions, we solve only first questio according to the Bartleby guideline. Find out…

Q: How many chiral centers are there in this molecule and identify them on the image? Is it delivered…

A: Zero.

Q: Label on a strong acid/strong base titration curve where pH=pKa. Is there a buffer region on a this…

A: Strong acid and strong bases dissociates Completely. So in this curve at end point neutralisation…

Q: Total acidity of commercial white wine was determined by titration with 0.1512 M NaOH. A. Write the…

A: Given: Concentration of NaOH = 0.1512 M Volume of NaOH required = 3.35 mL = 0.00335 L…

Q: Your challenge this time is to use the list of compounds below to come up with a reaction that will…

A: In a precipitation reaction, a solid precipitate is formed that is sparingly soluble in water. When…

Q: Using the standard enthalpies of formation, what is the standard enthalpy of reaction? CO(g) +…

A: Known: ∆HfoCOg=-110.5 kJ/mol.∆HfoH2O(g)=-241.8 kJ/mol∆HfoCO2(g)=-393.5 kJ/mol∆HfoH2(g)=0 kJ/mol

Q: ILMatch each item with the correct statement below. a. integrated rate law b. Buffers c. leclanche…

A: The various terms has different definitions.

Q: Oxidation number of C in H2CO3 is Answer:

A: Given compound-                                  H2CO3

Q: Does a reaction occur when aqueous solutions of chromium(III) sulfate and ammonium sulfide are…

A: Reaction occurs between chromium(III) sulfate and ammonium sulfide.

Q: (Q19) What is the pH of a solution that is 0.720 in hydrosulfuric acid (H2S)? Ka1 = 8.9 x 10-8 and…

A: PH of H2S can be calculated as follows

Q: Draw the organic product expected from the reaction. Include all hydrogen atoms. Note that K, Cr, O,…

A:

Q: 3. Find the total pressure for a mixture that contains four gases with partial pressures of 0.39…

A: Given -> Partial pressure of four gases -> 0.39 kpa , 0.53 kpa , 0.73kpa , 0.72 kpa

Q: он CH He. CH He CH, CH. CH3 H Hy CH 'Ha H CH CH CH CHs H H. He He 2,4-methyiphenol…

A: Form the chemical shift and number of signals appeared in the NMR spectrum we can predict the…

Q: The rate constants of some reactions double with every 10-degree rise in temperature. Assume that a…

A:

Q: 1. A student adds 25.27 mL of a 0.750 M Na2SO4 solution to another solution containing 2.50 grams of…

A: Given -> Volume of Na2SO4 = 25.27 ml Molarity of Na2SO4 = 0.750 M Weight of BaCl2  = 2.50 gm

Q: cular weight ases the vapor pressure of a compo molecular forces ecular weight D.Lower meltin…

A: 17) Boiling point of a compound is depends upon intermolecular interactions. Higher the…

Q: OH Br CO2H CO2H .CO2H Br2 Na* OAc easily enolized

A: enolate generation followed by substitution

Q: Br + NaCN Br + 2 NH3 S Na CH;-I: Na* CH,-: H,N: Br:

A: when primary, secondary and benzyl halides  reaction with strong nucleophile undergo nucleophilic…

Q: A mixture of solid calcium oxide, CaO, and solid barium oxide, BaO, weighing 5.978 g is added to a…

A: Answer: In this question first of all we will calculate the moles CO2 consumed and then by the use…

Q: reaction is: Co(s) + HgCl (aq) → COCI(aq) + Hg(1)

A: Given , Mass of Co = 1.25 g Molar mass of Co = 59.0 g/mol Molar  mass of Hg = 200 g/mol Mole =…

Q: What quantity of moles of glucose (C₆H₁₂O₆) in 0.500 L of a 0.400 M solutions?     The pH of a basic…

A:

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.