Suppose 0.0013 mol HA and 0.0013 mol A¯ are present in 170. mL solution and the pH is 4.00. What is the pKa of the acid?

Q: Identify the nucleophile and electrophile in the following elimination reaction of alkyl bromide I…

A: Electrophile is a substance which is electron deficient .  Nucleophile is a substance which is…

Q: 2. The following is the relative number of molecules in the vibrational states of the 1CI molecule…

A: The above question can be solved using the Maxwell- Boltzmann distribution law The Maxwell–Boltzmann…

Q: The development of hyphenated techniques has resulted in reduction of sample requirements, shorter…

A: We have find out the corrected option.

Q: Indicate the hybridization of the specified atoms. Be sure to consider any lone pairs you added in…

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Q: Hb. На Hc Hd Не NO2 Hf Hg Br

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Q: A moon rock collected by a U.S. Apollo mission is estimated to be 3.50 billion years old by…

A: Given : Time = 3.50 billion years old. Mass of uranium-238 = 1.540g Half life = 4.47 x 109 years

Q: What is [OH−][OH−] in a solution with a pHpH of 8.37?

A: Given :- pH of solution = 8.37  To calculate :- concentration of OH- ions i.e. [OH-]

Q: If an ideal gas has a pressure of 7.01 atm, a temperature of 14.77 °C, and a volume of 68.71 L, how…

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Q: Meo Meo Me 5. Me Meo

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Q: O: O O Yes. O No, it has the wrong number of valence electrons. The correct number is: No, it has…

A: The correct answer is given below

Q: Arabitol is produced by the reduction of D‑arabinose. Modify the molecule to show the product of the…

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Q: An analytical chemist is titrating 171.3 mL of a 0.5600M solution propylamine (CH,NH,) with a…

A: Given- Volume of  propylamine= 171.3mL  Concentration of propylamine= 0.5600M pKb of…

Q: Al + HCI --> AICI3 + H2 a. When this equation is balanced, what is the sum of the coefficients? b.…

A: Note : As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost…

Q: Question 2 Assign E or Z stereochemistry to each of the following alkenes. State your answer for…

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Q: A flavor chemist attempted to isolate and identify the major flavor component of a recently…

A: IR : 3100 cm-1 sp2 C-H stretch, 2950 cm-1 sp3 C-H stretch, 1735 cm-1 carbonyl stretch of ester, 800…

Q: A chemical engineer is studying the two reactions shown in the table below. In each case, he fills a…

A: A reaction is spontaneous when ∆G is negative. A reverse reaction is spontaneous when ∆G is…

Q: The vapor pressure of liquid methanol, CH30H, is 100. mm Hg at 294 K. A 9.05x10-2 g sample of liquid…

A: The explanation is given below-

Q: 3. The Mannich reaction can take many forms, including reactions where aromatic heterocycles are…

A: 1. Sn2 reaction between alkyl bromide and pyridine. Michael addition followed by Mannich reaction.

Q: Which will be reduced first if a mixture of molten salts that has  F- , Fe2+, Cl- , Br- , & Mg2+

A: A molten salt only contains the constituent ions and it doesn't contain water, H2O(l). The given…

Q: What would be the empirical formula for ionic compound that AxBy  which has a cubic cell unit and…

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Q: A system of mathematics used to describe the behavior of nature is called the "Mechanics" of the…

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Q: CH3 2-methylocta-4,6-dien-1-amine

A: Methyl group is the -CH3

Q: A salt solution is to be added to a marine aquarium. Calculate the molarity of a salt solution that…

A: Given :-  Mass of NaCl = 18.65 g  Volume of solution = 250.0 mL  To calculate :-  Molarity of…

Q: Rank the following according to DECREASING number of entropy A. 1.32 mol SF6 B. 31.0 g S8…

A: we need to rank A-D in the order of decreasing entropy

Q: Draw three resonance structures for carbonate ion, CO32-, and assign formal charges  on all the…

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Q: Calculate the mass of NaClNaCl in a 45 −mL−mL sample of a 1.4 MM NaClNaCl solution.         Express…

A: We have to find the mass of NaCl present in 45 mL of 1.4 M NaCl solution. Given data; molarity = 1.4…

Q: 182 −mL−mL sample of a 1.3 MM sucrose solution is diluted to 600 mLmL .     Part A What is the…

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Q: termine overall E° cell for the voltaic cell and diagram the cell including the anode, nent of…

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Q: Consider the decomposition reaction shown below. NO2(g) 2 NO(g) + ½ O2(g) A. What is the equilibrium…

A: Dear student,  As you have asked multiple question but according to guidelines we will solve first…

Q: (a) Draw a specific organic reaction for the halohydrin formation addition reaction of alkenes. (b)…

A: Here we have to predict major and minor product formed by the halohydrin formation addition reaction…

Q: What are the main components of an electrochemical cell?

A: An electrochemical cell is an apparatus or tool that produces electric current from chemical change…

Q: When 1.06 g of a certain molecular compound X are dissolved in 85.0 g of dibenzyl ether…

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Q: CH3 1) MCPBA 2) CH3NH2

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Q: Draw the product of the reduction of the given aldehyde. Include all hydrogen atoms.

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Q: CH3 но MCPBA H3C-MgBr CH3

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Q: e pressure

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Q: A certain liquid X has a normal freezing point of 4.80 °C and a freezing point depression constant…

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Q: 5. Calculate ΔG° and ΔG750°C for the following reaction 2NO (g) + O2 (g) ⇌ 2NO2(g) which is…

A: The given equilibrium reaction is 2NO (g) + O2 (g) ⇌ 2NO2(g) Give data S°(NO) = 210.8 J/(mol•K),…

Q: A flavor chemist attempted to isolate and identify the major flavor component of a recently…

A: Given information: Compound 1 has a smaller Rf value (0.2) than compound 2 with Rf value 0.6.

Q: When 18.0 mL of a 3.75×10-4 M sodium hydroxide solution is combined with 15.0 mL of a 1.53×10-4 M…

A: The chemical equation for the reaction of sodium hydroxide solution zinc bromide solution is  2 NaOH…

Q: choose the substance expected to have highest surface tension in liquid phase: a) CH3CH2F b)…

A: Choose the substance expected to have highest surface tension in liquid phase: a) CH3CH2F b)…

Q: 2. a. Provide mechanisms and/or products for the following transformation. NEt2 „CHO Me Me (.5…

A: Reaction 1 : Acid catalyzed enamine synthesis followed by Diels Alder reaction. ( see below).

Q: What is the structure of the main product produced by the following reaction? но- -CO2H 1) heat ? 2)…

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Q: List the following species in the order of decreasing nucleophilicity in DMSO. OH CH;COO CH;S CH3OH

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Q: Which reactions are spontaneous in the forward direction and spontaneous In the reverse direction…

A: ->If ∆rG < 0 => then it is spontaneous. ->If ∆rG > 0 => then it is non…

Q: What is the pH of the solution when 20.0 mL of 0.155 M of NH3(aq) is titrated with 15.0 mL of 0.225…

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Q: Assign formal charges to each atom in the three resonance forms of N,O. :N-N=0: :N=N-0: Answer Bank…

A: Here, we have to assign the formal charges to each atom in the three resonance forms of N2O.

Q: Epsom salts, a strong laxative used in veterinary medicine, is a hydrate, which means that a certain…

A: First calculate the mass of water lost from the sample and then calculate the mass of water that…

Q: 2) Find the activity coefficients for both ions of AgCN in a 500 mL solution saturated with AgCN(s)…

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Q: Over a period of time, the concentration of sulfuric acid in the lead storage battery of an…

A: Given data,Initial % by mass of H2SO4=38.0 %Final % by mass of H2SO4=26.0%Volume of H2SO4=734…

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.