What is the pH of a 0.173 M solution of a hydrogen sulfide? The pKa at the temperature of the experiment is equal to 7.03.

Q: 45. If a chemical reaction has a positive change in entropy, AS, then: A) the reaction is…

A: As it is a multiple question and no specific question is asked to answer so i am solving first…

Q: What is molar mass of oxygen

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Q: Fill in the missing name or chemical formula for the following complex ions or compounds. Number…

A: Here we are required to either name the complex or write the formula of the complex.

Q: What is the name of the following structure?

A: To solve this question it is quite important to determine the absolute configuration at the chiral…

Q: write down adetaled mechanism for the fallowing transformations. CN

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Q: What is the molecular weight of the gas? (hint: remember that PV=nRTPV=nRT) The molecular…

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Q: Calculate the reaction quotient, Qr for the following reactions and conditions: 7. 2 SO3(g) → 2…

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Q: 42. Cadmium sulfide, CdS, is an insoluble substance with a Ksp of 1.0 X 104º. It dissociates in…

A: Since you have asked multiple type questions, we will solve only first  questions for you. If you…

Q: Homework Q1 :- What is the pK, of acetic acid, if K, for acetic acid is 1.58 x 10-6?

A: Pka is equal to negative logarithm of ka

Q: What is the volume of 0.250 mol of H2 at STP?

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Q: How many moles of S are needed to combine with 0.454 mol Al to give Al2S3? mol S

A: Given:: Moles of Al = 0.454 mol moles of S = ?

Q: may 1. The name of the following compound is ÇHO A. phenoxide B. phenol C. benzoic acid D.…

A: The correct name of the above compound is given below

Q: A student is using a calorimeter to determine the specific heat of a metallic sample. She measures…

A: Given, For metal  Mass of metal (mmetal) = 128.1 g Specific heat of metal (Cpmetal) = ? Initial…

Q: uestio 16 Which one of the following 1.0 M solutions would be expected to have the highest pH? A)…

A: Bases have the high PH and acids have low PH. So , here we need to  compare only two bases that is…

Q: and 27oC is cooled to -48oC at 608 torr.  a. What is the final volume?  b.  How many moles of gas…

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Q: 6. а). 1. CF4 2. Н:0 3. CH:ОН 4. HCI 5. CH14 Circle all the molecules below that are immiscible with…

A: 6) CCl4 that is carbon tetrachloride is nonpolar because all the four bonds are symmetrical, and…

Q: Define an isomer and explain the difference between a cis and a trans isomer seen a coordination…

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Q: List at least three differences between iodimetry and iodometry. Give the structure of sodium…

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Q: CH3 CH2OH 5. Using only ethanol as a starting material, plan a synthesis of 2-butanol using only…

A: Detail mechanistic pathway is given below

Q: The thermochemical equation for photosynthesis is shown below: 6 H20) + 6 CO26) - C6H1206(s) + 6…

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Q: H-CH-CH2-CH2 CH

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Q: Example 22.7 Alcohol Reactions Determine the type of reaction (substitution, dehydration, oxidation,…

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Q: suming ideal behavior, which of the following aqueous solutions should have the highest boiling…

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Q: Aside from repeating the experiment, search literature and suggest what can be done to remedy a…

A: Remedy for a sample that is ‘over-titrated'   1 - Over-titration is a state where there is more…

Q: Compound Z has a heat of vaporization of 155.9 J/g, a specific heat capacity of 2.08 J/gºC, and…

A: Given, Boiling point = 72.1 °c □Hvap = 155.9 J/g C(l) =  2.08 J/g-°c Mass of. Z(m) = 562.4 g

Q: Choose a Grignard reagent _______and a ketone _______ that can be used to produce the following…

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Q: 2N2OH + H2S04 2H2O + Na2SO4 -> AH = -112 kJ %3D What is the heat change for the reaction when the…

A: Given: ∆H = -112 kJ

Q: Homework Q1 :- What is the pK, of acetic acid, if K, for acetic acid is 1.58 x 10-6?

A: Pka is equal to negative logarithm of ka

Q: The equations for the reactions occurring are: reaction 1: K2CO3(s) + 2HCl(aq) → 2KCl(aq) +…

A: Q = Mass * Specific heat capacity * Temp change

Q: What is the formula for the complex ion made by iron(IIl) with 4 aqua and two thiosulfato (S,0022)…

A: Known Metal ion - Fe3+   ; ligands are 4 aqua - 4 H2O S2O32- Complex should be written in square…

Q: 14. What is the product of the following reaction. H;N-ÇH- -ÇH- CH-C-OH CH: CH: CH2 1) PhN= FSIH…

A: We have to draw the product of the given reaction. This is an example of one type of Edman…

Q: 30) Show an increase in the order of the acidity for the following aromatic acids: (i) p-ethyl…

A: Acidity of benzoic acid depends on the group that  attached to the benzene ring and the position of…

Q: 14. You set out to study the reaction 2AB (g) = A2 (g) + B2 (g). You place 0.30 moles of AB into an…

A: Write the missing table ---

Q: The Robinson annulation reaction involves Michael addition and aldol condensation and it is a ring…

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Q: What is the pOH of a solution that has a H3O+ concentration equal to 8.23 x 10-5 M at 25°C?

A: The sum of pH and pOH is equal to 14.  So from pOH value also we can know that the solution is…

Q: prepare a standard solution of a Sodium Chloride (NaCl), 0.2 N in 250 ml of water. (atomic weight :…

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Q: constant expression? PROBT Kp = Po PBr2 NO A) 2 NOBR (g) = 2 NO (g) + Br2(g) B) NO (g) + ½ Br2 (g) =…

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Q: Identify the charge on the metal in the following complex ions or compounds. 1. [Cu(CN)4]?- 2.…

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Q: A sample of tap water contains 1.95 x 103 ppm CaCO3(aq). Assuming the density of tap water is…

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Q: NH3 obtained when 0.5 g of an organic compound substance was subjected to Kjeldahl's method was…

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Q: In the identification of propan-1-ol, propan-2-ol and 2-methylpropan-2-ol, these alcohols are mixed…

A: In this question we have to tell the product of the reaction.

Q: The conductance of 0.00017 M acetic acid solution is 153 µS when applying a probe with 0.87 cm−1…

A: Given: Concentration of solution, x = 0.00017 M = 0.00017 mol/L            Conductance of solution,…

Q: Write a balanced equation for the reaction of acetic acid (as an aqueous solution) with solid sodium…

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Q: Predict the products of the lowing ether cleavage reaction. CH3 HBr 0-CH2CH3 H20

A: Detail mechanistic pathway is given below to find out the product

Q: Assume that the side chain of Asp has a pka of 4.51. At what pH will the side chain be half-…

A: When pH < pKa then Asp (aspartic amino acid) protonated When pH > pKa Then Asp deprotonated…

Q: 1. Between trans-3-isopropylcyclohexanamine and cis-3-isopropylcyclohexanamine, which stereoisomer…

A: cis-3-isopropylcyclohexanamine is the most stable configuration.

Q: A stimulus causes an electrical signal to move along a nerve due to: Change of positive ions into…

A: Biochemistry is branch of chemistry which is applied to  study the biological processes at the…

Q: 20.77. The nitration of methanol, CH3OH, by nitrous acid is thought to proceed via the following…

A: Rate law expression: Rate laws or rate equations for a reaction are mathematical expressions which…

Q: It was found that 3.85 g of a compound of phosphorus and chlorine contained 0.165 g of phosphorus.…

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Q: 7. CH,O, + OH CH,O,+ H,O redox reaction (yes/no), species oxidized oxidizing agent species reduced…

A: 7. C2H4O2 + OH- -----> C2H3O2- + H2O  Here the oxidation states of different atoms at reactant…