A buffer solution contains 0.307 M CH₂NH, Cl and 0.420 M CH₂NH₂ (methylamine). Determine the pH change when 0.115 mol HNO3 added to 1.00 L of the buffer. (Assume Kb (CH₂NH₂) = 4.2 x 10) pH after addition - pH before addition pH change =

Q: It says that this answer is wrong and that the major product structure should contain one or more…

A: Here, the hydrolysis of enamine doesn't take place, as there is not any hydrolysis condition is…

Q: List the alkyl halides in order of decreasing reactivity towards the Sn1 reaction

A: SN1 reactions proceed via formation of carbocation in a first order reaction in which the reactivity…

Q: Consider the reaction: 2HBr(g) → H₂(g) + Br₂ (1) Using standard absolute entropies at 298 K,…

A: The chemical reaction given is 2 HBr (g) → H2 (g) + Br2 (l) The absolute entropy values given are…

Q: Which synthetic route(s) would complete the reaction shown? Br || ||| I and II O I and III ? HO OH +…

A:

Q: How much 50% solution is needed to make 200 mls of a 4% solution? O a. 10 mls Ob. 16 mls Oc. 20 mls…

A: we have to calculate the amount of concentrated solution needed to prepare the dilute solution

Q: E + Identify the carbocation that benefits the most from hyperconjugation. IV A) I B) II C) III D)…

A: Given,

Q: 8) Consider the reactions (forward and reverse, respectively, for the same equilibrium) below: k =…

A: Given: Rate of forward reaction = 2.6×103 L2mol2sec Rate of backward reaction = 4.1Lmol-sec

Q: A volume of 500.0 mL of 0.140 M NaOH is added to 615 mL of 0.250 M weak acid (?a=8.47×10−5). What is…

A:

Q: What would the hydrogen ion concentration be if the pOH was 5. What would the hydroxide ion…

A:

Q: For the  reaction 3H2(g)+N2(g)⇌2NH3(g) at 225 ∘C the equilibrium contant  is 1.7×10^2. If the…

A:

Q: the answers seems to be incorrect, equation isnt balanced

A: We have to give the balanced nuclear equation of the alpha decay of uranium-238.

Q: Question 2 Balance the following reaction (in basic solution) and complete the subsequent…

A: Answer:- This question is answered by using the simple concept of balancing the redox reaction using…

Q: Curved arrows are used to illustrate the flow of electrons. Follow the arrows and draw the…

A: Given : structure of molecules

Q: Ok it says your last answer is almost correct, but the formal charge is incorrect. Can you help…

A: Valence electrons is equal to group number

Q: How could you obtain the two products shown below from 1-bromo-1-methylcyclohexane (just write the…

A:

Q: onow all atoms, bonds and lone pairs Tamiflu HN NH₂ Identify the geometry relative to each atom that…

A:

Q: Given the electrochemical cell in the picture: In the balanced cell reaction, the number of…

A: In a given electrochemical cell, at anode, the oxidation occurs while reduction happens at the…

Q: Н. I НО- НО HO H c=0 I II -OH CH₂OH

A: Enantiomers are non superimposable mirror images of each other.

Q: A galvanic cell is powered by the following redox reaction: HNO₂(aq) + H(aq) + Cu (aq) → NO(g) +…

A: Electrochemical cell are the cell that convert chemical energy into electrical energy. Oxidation…

Q: A solution contains 1.49x10-2 M lead acetate and 1.09x10-2 M calcium nitrate. Solid ammonium sulfide…

A:

Q: Calculate Ksp for KOH at 25 °C. K*(aq) OH(aq) KOH(s) AG (kJ/mol) -283.3 -157.3 -379.4 Provide your…

A:

Q: (A) The literature reports that when alcohol 1 (see structure below) is treated with thionyl…

A: To explain A) the mechanism of the given reaction B) predicting the stereoisomer when pyridine is…

Q: Weak acids incompletely dissociate in water, which means their ionizations are reversible - true or…

A:

Q: Complete the following organic synthesis 5. 2-2-2-2 OH 2-2-3-3-2-2 OH OH

A: Mechanism

Q: a) The equilibrium reaction for the aqueous dissociation of acetic acid is shown below. CH3COOH(aq)…

A: Answer:- This question is answered by using the simple concept of calculation of standard Gibbs free…

Q: Given the balanced equation:   2 LiOH +  CO2 ? Li2CO3 +  H2O,

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: Use the References to access important values if needed for this question. Arrange the following…

A: Entropy is the measurement of a system thermal energy per unit temperature that is unavailable for…

Q: #2 Draw the product of the reaction shown below. Use wedge and dash bonds to indicate…

A:

Q: What is the boiling point of a solution of 0.15 mole T i (N O3)4 in 0.50 kg water? (Kb for water is…

A:

Q: What is the empirical formula for a compound containing only carbon and hydrogen if it is known to…

A: It is an example of determination of empirical formula of the compound.  Here we are required to…

Q: What is the equilibrium constant, K, at 25°C for the following reaction? Br₂(1) + H₂(g) -> 2 H*(aq)…

A:

Q: Draw the products of each step of this reaction sequence. Ignore inorganic byproducts.

A:

Q: Time and concentration data were collected for the reaction A →→ products t (s) 8880 20 40 60 80 100…

A: Given , Reaction : A→ Products

Q: H3PO4 is a weak acid that dissociates into H2PO4- and H+. What is the Ph of a .5 M solution of…

A:

Q: The Kc for the following reaction is 15 at 220 ∘C. CO(g)+2H2(g)⇌CH3OH(g) If an equilibrium mixture…

A: Kc is equilibrium constant

Q: Part A What is the numerical value of K, for the following reaction if the equilibrium mixture…

A:

Q: Which of the following statements are true about solvents? Polar aprotic solvents contain at least…

A: Polar protic solvent are able to form hydrogen bond with solute. example: H2O Polar aprotic solvent…

Q: and for (a) calculate energy > momentin Wave lenght of staten particles one box 3rd level box…

A: “Since you have posted multiple questions, we will provide the solution only to the first question…

Q: For the reaction 6C0₂(g) + 6H₂O(1) C6H1206 + 602(g) AHxn 2800.8 kJ and ASºrxn= -259.0 J/K The…

A: The chemical reaction :  ∆H°rxn = 2800.8 KJ  ∆S°rxn = -259.0 J/k  Note : Both ∆H°rxn and ∆S°rxn are…

Q: Which rate equation best describes an E2 reaction? rate = k [base] rate = k [alkyl halide] [base]…

A: E2 reaction is referred to biomolecular elimination reaction.  Strong base is required for E2…

Q: Melphalan, a drug used in chemotherapy, reacts with itself in the body before binding with its…

A:

Q: Which salts will be more soluble in an acidic solution than in pure water? PbI2 Ag2SO4 RbClO4 CaCO3…

A: Here we must use Hard-soft acid base theory to rationalize. This principle tells that hard acid…

Q: Semimetallic silicon can be made by the electrolysis of molten SiO₂. How many minutes are needed to…

A:

Q: The equilibrium reaction for the aqueous dissociation of acetic acid is shown below. CH3COOH(aq)…

A: Gibbs free energy in Chemical Standard state, ∆GΘ = The reaction is at standard conditions, i.e 25o…

Q: QUESTION 15 Which of the following processes will have a AH value with a positive sign? OA. The…

A:

Q: Use the References to access important values if needed for this question. For the reaction 2Na(s) +…

A:

Q: What is the electron-pair geometry for B in BCl3?------------ There are ------------ lone pair(s)…

A: The Lewis structure of BCl3 is as follows -->

Q: 3. Please draw the most important (stable) resonance form of the carbonation that mediates the…

A:

Q: You need to make 841 mL of a 838 mM solution of a compound with FW 457.71. How many grams of the…

A: Molarity is defined as number of mole of solute divide by volume of solution in liter

Q: Provide the major organic product of the following. CH₂CH₂NH₂, H (cat.) O

A: Aldehydes and Ketones react with amines to produce Imines. This reaction is occures in small amount…

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.