Can NaBr/NaOH be classified as a buffer system?

Q: 1. LiAIH4 (excess) 2. Н30 OH OH (A) (C) зде уже OH ОН (В) (D)

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Q: How many grams of carbon dioxide can be produced from the combustion of 48.74 g of pentane?…

A: To answer this question, we need to use the balanced chemical equation given: C5H12(l) + 8 O2(g) → 5…

Q: answers

A: The complete chemical reaction is -     C6H5NH2 (aq) + H2O (l) → C6H5NH3+ (aq) + OH- (aq) The molar…

Q: The Kb of ammonia is 1.76 × 10-5. The pH of a buffer prepared by combining 50.0 mL of 1.00 M ammonia…

A: kb of ammonia ( NH3) = 1.76 × 10-5 • For ammonia ( NH3)  Molarity = 1.00 M , Volume = 50.0 mL  • For…

Q: 3.5 Write the IUPAC names of the following hydrocarbons CH3 | (a) CH3CHCH=CHCH3 (b) Br

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Q: Question 7 Describe the mechanism of the following Claisen reaction R. 9-0H H OH R OMe MAMA OMe Base…

A: Reaction between two esters or one ester and another carbonyl compound in the presence of a strong…

Q: 6. What important intermediate is made from the reaction of 1-bromopropane and NaN3? (Draw and…

A: While writing the mechanism by curly arrows,  use electron pushing arrow from electron rich center…

Q: H3PO4 is a polyprotic acid with three acidic protons. Be sure to include the proper phases for all…

A: Since, When polyprotic acids dissociates in water, their protons dissociates one by one following…

Q: What is the mass in grams of 2.13 x 1018 moles of Lithium?

A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Thus,

Q: 5. A student conducts a reaction at 298 K in a rigid vessel and the reaction goes to completion. The…

A: Gibb's free energy is the energy available to do useful work during a chemical reaction.  The…

Q: Chemical conversions 1. What is the molecular weight of nitrobenzene, often known as C_6*H_5*O_2*N?…

A: Given  Molecular formula of nitrobenzene = C6H5O2N  No. of moles = mass given ÷ molar mass  Atomic…

Q: OH CO₂H + CH₂C-O-CCH3 CH₁ H₂SO4 Q-CCH3 CO₂H + i CH₂C-O-H

A: When salicylic acid is treated with acetic anhydride, acetylsalicylic acid is produced which is…

Q: Walmart-Hiring Ce... + Question 22 of 24 Rank the following metals in order of least reactive with…

A: We need to rank the order of the given elements from least reactive to most reactive with water.…

Q: Place the best reagent and conditions in the bins for each of the following reactions. One of the…

A: In first compound that is primary alcohol is form from ester on reduction there is reduction of…

Q: helther amylose nor cellulose. a) contains a-(1→6) glycosidic bonds neither a mylose nor cellulose…

A: Amylose and cellulose are both types of carbohydrates, but they differ in their chemical structure…

Q: 10) Use the Standard Free Energy of Formation values below to calculate Standard Free Energy for the…

A: PbCl2(s) + 2NOF(g) ----> PbF2(s) + 2NOCl(g) Standard free energy for the balanced equation…

Q: Which of these bonds would be expected to be the most polar? a.) S-H b.) O-H c.) C-N d.)…

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Q: Exhibit 16-9 Choose the best reagent(s) from the list provided below for carrying out the following…

A: According to the bartleby guidelines for the sub multipart questions, we can solve only first three…

Q: The equation below is best described as 2352U → 23593Np + °-₁e

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Q: 8.21 A sodium chloride intravenous (IV) fluid contains 154 mEq of Nat per liter of solution. If a…

A: 8.21) Given that A sodium chloride intravenous (IV) fluid contains 154 mEq of Na+ per liter of…

Q: H³PO4 is a polyprotic acid with three acidic protons. Be sure to include the proper phases for all…

A: When polyprotic acids dissociates in water, their protons dissociates one by one following several…

Q: ▼ ▼ ▼ Part A Draw the product of the complete hydrogenation of ethyne. Draw the molecule on the…

A: We need to draw product of  Part A the complete hydrogenation of ethyne. Part B  the hydration of…

Q: Empirical Evidence 1. gas produced that will relight a glowing splint 2. gas produced that will…

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Q: Which of the following statements regarding a gamma ray is true? A) It is less penetrating than a…

A: Properties of Gamma ray-                       The waves arising from the high-frequency end of…

Q: LYWAL 12) For a reaction with an equilibrium constant, K, of 4.51x10' at 298 K, what is the value of…

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Q: Write the equilibrium constant expression, K, for the following reaction: If either the numerator or…

A: Equilibrium constant K for a reaction is defined as the product of the molar concentrations of the…

Q: Tritium, ³H, is radioactive, decaying by electron emission with a half-life of 12.5 years. In…

A: Moles = mass / molar mass

Q: What is the pH of a buffer prepared by adding 0.809 mol of the weak acid HA to 0.507 mol of NaA in…

A: we have to calculate the pH of solution

Q: The complete ground state electron configuration of C (carbon; Z = 6) is:  1s22s22p2 Using the…

A: The atomic number of Bi is 83.

Q: Answer the following questions: (a) Without using quantum numbers, describe the differences between…

A: Dear student,                        As per our guideline we are supposed to solve one question at a…

Q: What is E at 25 °C for the reaction described by Mg(s) | Mg²⁺ (1.60 M) || Pb²⁺ (0.850 M) | Pb(s)?…

A: Mg(s) | Mg²⁺ (1.60 M) || Pb²⁺ (0.850 M) | Pb(s) Standard cell potential (E°cell) = +2.231 V Cell…

Q: Write the standard line notation for each cell below. Assume all concentrations are 1.0 M and all…

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Q: For each of the following compounds, decide whether the compound's solubility in aqueous solution…

A: The solubility of an ionic compound changes with pH if it produces an ion that reacts with H+(aq)…

Q: 4) is true? Given a reaction with AH = -53.9 kJ/mol and AS = + 79.9 J/(mol-K), which state a. This…

A: Answer: Below shown relation will be used to find out the spontaneity of the reaction: ∆G=∆H-T∆S…

Q: Calculate the effective nuclear charge on a valence electron in a calcium atom. 27

A: To solve this problem we have to calculate the Effective Nuclear Change.

Q: A) There is no change in voltage. B) The voltage increases. Z(s) C) The voltage decreases. D) The…

A: Answer: To solve the given problems Nernst equation will be used which is shown below:…

Q: Construct the expression for Kb for the weak base, CN-. CN- (aq) + H₂O(1) OH-(aq) + HCN(aq) Based on…

A: The given equilibrium reaction is: CN-aq+H2Ol⇌OH-aq+HCNaq

Q: Imagine the main chain of a protein bends back on itself, so that two amino acid residues R, and R,…

A: This question is based on structure of amino acids and interactions in a protein structure.

Q: Aldol: H 1. LDA, THF 2. HT 3. H3O+ HO 'H

A: The reaction in which an enolate ion is reacts with a carbonyl compound in the presence of base to…

Q: What is the molar solubility of AgCl (Ksp = 1.80 x 10-10) in 0.800 M NH3? (Kf of Ag(NH3)2 is 1.7 x…

A: Answer: When ammonia solution is added to AgCl it is able to form a complex with the Ag+ ions…

Q: Matter can change from one physical state (phase) to another without any change in chemical…

A: Given mass of water ice, m = 135 g  Molar mass of water = 18.02 g/ mol  Therefore, moles of water =…

Q: Calculate ΔG rxn for the following reaction at 639.2 K if the reaction below has a ΔH o rxn of…

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Q: Calculate ΔG° rxn for the reaction below given the Gibbs free energies of formation.

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Q: When the following equation is balanced properly under basic conditions, what are the coefficients…

A: Since, In redox reaction, Oxidation and reduction reaction both takes place simultaneously. In…

Q: ∞0000 The molecular orbital above is best described as: б о * 0 0 0 П 0*

A: Molecular orbitals  formed by the combination of atomic orbitals.

Q: What is the pH of a 0.24 M solution of NaNO₂? For nitrous acid, HNO₂, K, 4.6 x 10. pH= 1 203

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Q: 1. Complete the following reactions. ہلہ بلده a. b. c. N 1. LiAlH4 2. H3O* 1. NaAlH4 2. HO * 1.…

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Q: Question 12 of 14 Consider the gaseous reaction shown below. How many mol of C are formed if at STP,…

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Q: Balance the redox reaction by inserting the appropriate coefficients. redox reaction: H₂O + Br +…

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Q: For the following skeletal reaction, use the half-reaction method to write a balanced net reaction…

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