The value of ΔS° for the formation of calcium chloride from its constituent elements,            Ca (s) + Cl2 (g) → CaCl2 (s)    is __________ J/K.

Q: Draw this peptide showing correct stereochemistry (hashed/wedged bonds) and please explain…

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Q: if I have 7.7 moles of gas at a pressure of 9.119 kPa and at a temperature of 56C what is the volume…

A: The correct answer is given below

Q: A dosage descibes the amount of medication administered over a specified period of time with a…

A: In 1 day 4 dose of cephalexin must be given such that in entire one must be given 25 mg/kg of drug.

Q: HHO H H-C-C-C-0-C-E HHHO III! H-C-C-C-C-0-H III JI Н Н A X Y The compounds above have the same…

A: Nature of functional group in both compounds decide the properties.

Q: Calculate the hydronium ion concentration of 2*10 -³ M Na 2 HPO 4? Please choose one: a. 8.9 b. 9.2…

A: We would use dissociation equation and Ka value to calculate Concentration of hydronium ion.  The…

Q: What concentration of SO²¯ is in equilibrium with Ag₂SO3 (s) and 2.40 × 10−³ M Ag†? The Ksp of…

A: In the saturated solution of sparingly soluble salt, the product of equilibrium concentrations of…

Q: for the following reaction which of the following is a base-conjugate acid pair? HCO3 to the 1-…

A: The equation is ;  HCO3- + NH3 --> CO32- + NH4+  We know , conjugate acid-base or acid-conjugate…

Q: Activity Calculate the activity and write your solution in a separate sheet of paper. Calculate the…

A: C-12 is a stable isotope of carbon.

Q: Ph a b 24 a or b Ph 27 OH HO 26

A: Reactions in Ether

Q: Question 7 of 9 Identify the functional groups in the given organ 0 HS OH NH₂ Select the correct…

A: Functional groups are the groups of atoms and bonds in a compound that describes the characteristics…

Q: What is the volume in milliliters of 3.4 mol of carbon monoxide at STP

A: 1mol of carbon monoxide=22.4L (at STP)

Q: A sample of gas is heated from 25 C to 50 C. If the original volume is 500 ml, what is the final…

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Q: The rate constant for the decay of a radioactive element is 3.17 x 10-³ day¹. What is the half-life…

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Q: 8Fe + S8 → 8FeS How many grams of iron are needed to react with 3.00 g of sulfur?

A: Given weight of sulfur is 3 gram

Q: What is the total vapor pressure of a solution containing 35.8 g benzene (C,H₁, molar mass = 78.11…

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Q: Incubation with primary antibody should be accompanied with agitation, why?

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Q: Q6/ 15 mL of 0.03 M Pb(NO3)2 is added to 20 mL of 0.2 M NaCl. Predict if precipitate of PbCl2 will…

A: Given: The volume of 0.03 M Pb(NO3)2 added = 15 mL The volume of 0.2 M NaCl = 20 mL Ksp of PbCl2 =…

Q: The Ksp of lead(II) hydroxide, Pb(OH)2, is 1.43 × 10-20. Calculate the molar solubility, s, of this…

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Q: Show reagents and conditions you would use to convert aniline to the following aromatic compounds.…

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Q: With an acid catalyst, ethanol and formic acid will react to form: O || a) CH3C-H O b) H-C-OCH₂CH3 O…

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Q: (Q98) Electrolysis is being used to plate chromium onto a large plastic surface. If a total of 3.77…

A: Given, mass of Chromium (Cr) = 3.77 g Current (I) = ? Time (t) = ? min Note: molar mass of Cr = 52.0…

Q: Which of the following is used to aid the alcoholic -OH become a good leaving group?   a Ammonia…

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Q: Use the free energies of formation to calculate the equilibrium constant (K) for the following…

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Q: a) b) c) d) OH | CH3CH₂C=0 CH3CH₂CH₂OH Н OH CHOLL CH3CH₂C=0 Cr₂O72- H₂SO4 CH3CH₂C=0 O O || ||…

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Q: Name the compound as a phenol. OH CH3

A: The correct answer is given below

Q: At 479 K,479 K, this reaction has a ?cKc value of 0.0551.0.0551.…

A: Using the farmula  Kp = Kc (RT) delta(n)

Q: Which among the following statements best explains the purpose that sulfuric acid serve in the…

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Q: Calculate the pH at the equivalence point for the titration of 0.180 M methylamine (CH3NH₂) with…

A: pH at equivalence point can be calculated by considering the species present.

Q: You may find additional useful data in the ALEKS Data tab. Does the following reaction absorb or…

A: here we are required to find the amount of energy absorbed during the reaction.

Q: solubility of CuBr(s):

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Q: if the pOH of an acid is 3.09 what is the pH?

A: The pH can be calculated as follows

Q: Guideline 3: we prefer not to add this substituent مهم جدا كي يمكن تحطر هذا مركي MeO 14 هر NH₂ NH₂…

A: THE Given molecule is a organic compound where NO2,NH2,-OCH3 groups are present.

Q: In this reaction: Mg (s) + 12 (s)→ Mgl2 (s), if 10.0 g of Mg reacts with 60.0 g of 12, and 59.30 g…

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Q: A polypeptide is ... O None of the above. O an addition polymer of amino acids O a part of nucleic…

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Q: Give the IUPAC name of the compounds.

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Q: Understand:- 2. Explain how the following factors affect acidity. - Charge - The Role of the Atom…

A: Ans.2 i) Charge and acidity: When acidic compounds donate hydrogen ions or accepts electrons, they…

Q: A 250 mL beaker is filled with 100 mL of a 0.30 M solution of acetic acid (CH3COOH) and 150 mL of a…

A: Acetic acid is a weak acid , so it do not dissociate completely into its ions. NaOH is a strong base…

Q: How many sulfur atoms are there in 10.80 g of S7O2? Report your answer in scientific notation to the…

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Q: [H] 1.0×10-3 3.6×10-5 pH 6.21 POH 4.84 [OH] 5.1×10-3

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Q: The solvolysis reaction below gives a complex product mixture. The elimination products shown below…

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Q: A sample of gas is stored at 15 atmospheres and has a volume of 5 liters. If the volume of the gas…

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Q: This is a worksheet lab - there is no prelab and lab write up is not required Complete the following…

A: pKa= -log ka

Q: A metal artifact with a mass of 814.0 lbs and a length of 6.25 ft is recovered from the Queen Anne's…

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Q: En la reacción de autoprotólisis de agua : 2H₂O(0) H₂O*(aq) + OH (aq); los pares conjugados…

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Q: what happens to the equilibrium mixture of gases when the pressure increases for the following…

A: According to Le Chatelier's principle : reactions moves in a direction where changes are nullified.…

Q: Determine the ΔG at 298 K for the formation of ozone (O3) from oxygen if the partial pressure of…

A: O2(g) + O(g) ↔  O3(g) Kp = PO3]/PO2 x PO Kp = Kc (RT)∆n ∆G = - 2.303 RT log Kc

Q: 14. The reaction CO₂(g) + C(s) = 2 CO(g) has Kp=5.78 at 1200 K. Calculate the total pressure at…

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Q: 3. The reaction: 2NOBr(g) --> 2NO(g) + Br2(g), has the rate law: Rate k[NOBr]2, where k = 0.055…

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Q: a or b could be tried first. O₂N CI stacal 3 nitration ces موجود OEt para is major OEt 0₂N C-C…

A: Aromatic Reactions

Q: Which one of the following is correct for the sparingly soluble salts? 1. The cation plus its…

A: To choose the correct answer