Consider a solution consisting of 1.75 mol water and 0.97 mol ethanol. What is the entropy of mixing?     21.2 J/K     15.2 J/K     51.2 J/K     14.7 J/K

Q: The half-life of 90Sr is 29 years. What fraction of the atoms in a sample of 90Sr would remain 175…

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Q: Select Rings More Erase Draw HNO3 + H,0 H2SO4

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Q: जिए चीर लाटtihenren मि् भण्या e dreaction2 ७. A. ०३ 2. H2०2

A: ->O3/H2O2 is reagent used for oxidative Ozonolysis reaction and form ketone or carboxylic acid.

Q: 1-butanol yields 1-bromobutane in the presence of concentrated sulfuric acid and an excess of sodium…

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Q: Predict the conjugate acid of CH,O'. A) CH,ОН В) СН,ОН, + C) CH,O? '2 D) CH,O

A: We have to predict the conjugate acid of given species.

Q: Complete the balanced neutralization equation for the reaction below. Be sure to include the proper…

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Q: 5. What volume will 400. mL of SO3 at 0°C and 760 mm Hg occupy at 110. °C when the pressure remains…

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Q: HO CH HO, HO. Naproxen Acetaminophen Ibuprofen a. How many sp3 hybridized carbons does each molecule…

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Q: Balance the chemical equation given below, and determine the number of milliliters of 0.0850 M…

A: Given :-  Unbalanced equation :-  BaOH)2(aq) + H3PO4(aq) →  Ba3(PO4)2(s) + H2O(l)   Molarity of…

Q: 35. Does the following equation rep C-H H-C-OH HO-C-H Н-С-ОН H-C-OH CH,OH Glucose

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Q: OH "R/S Br Design a synthesis for this reaction above:

A: For the given transformation, alcohol is an potential intermediate and it undergo oxidation to…

Q: Draw the structure of the amino acid L-leucine at each pH: (a) 6; (b) 10; (c) 2. Which form…

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Q: 13.71 In a copper plating experiment in which copper metal is deposited from a copper(II) ion…

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Q: 125 moles of NOCI were placed in a 2.50 L reaction chamber at 427°C. After equilibrium was reached,…

A: Given equilibrium reaction is  2NOCl(g) ⇌ 2NO(g) + Cl2(g) Initial moles of NOCl = 1.25 mol  Volume…

Q: 13.77 When a lead storage battery is recharged by a current of 12.0 A for 15 minutes, what mass of…

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Q: Which of the following combination can be used to prepare a buffer with a pH of 3?     NaH2PO4 and…

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Q: CHM220 Page 3 он m. CH3 n. HC

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Q: Question 12 The osmotic pressure of an aqueous solution at 309 K is 120 kPa. Calculate the freezing…

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Q: 2,3-diaminobutane and butane-2,3-dione

A: The structure of 2,3-diaminobutane is:

Q: Calculate the Kc at -10 °C of the equilibrium reaction 3 A(g) + 2 B(g) ↔ C(g) + D(g) if the value of…

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Q: The equibrium constant for the reaction Nijs) + 4COlgi - NICOMlal is 5.0 - 104 at 25°C. What is the…

A: The equilibrium expression written for a reaction written in the reverse direction is the reciprocal…

Q: A voltaic cell utilizes the following reaction: 4FE²+(aq) + O2(g)+4H*(aq)→4Fe3+(aq) + 2H2O(1)…

A: The balanced reaction taking place is given as, => Given: Eocell = 0.46 V [Fe2+ ] = 1.8 M, [Fe3+…

Q: Suppose K = 4.5 X 10-3 at a certain temperature for the reaction PCl5(g) ⟺ PCl3(g) + Cl2(g) If it is…

A: The equilibrium reaction given is, => PCl5(g) ⟺ PCl3(g) + Cl2(g)…

Q: Consider the phase diagram of carbon dioxide. What is the pressure at the triple point?

A: Triple point-> Such point in phase diagram at which the solid , liquid and vapour phases of…

Q: a. Predict the molecular structure and bond angles for PO,3. Approximate bond angles are sufficient.…

A: Given-> 1-> PO43- 2->SO42-

Q: At 1275 K, ∆G° = 18.1 kJ/mol for the reaction 3 A (g) + B (g) → 2 C (g). If the partial pressures of…

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Q: 2. The solubility product for the dissolution of calcium carbonate in water (ar pH-7, 20 C) is K4.8…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Write the electron configuration and noble gas core notation for a) Mg b) S c) Ga

A: Since every question is different, we solve only one question from multiple question according to…

Q: Which of the following aqueous solutions are good buffer systems? 0 0.33 M ammonia + 0.39 M sodium…

A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The…

Q: With this information and the specific heat of water, 4.184 J/(g·°C), calculate the specific heat,…

A: Given,  The specific heat of gold metal,  when 38.600 g Au metal at 65.17 °C added to 60.00 g of…

Q: ag) + 2 e - Mnes) E--1.18 V + 2e 2 CI (ag) E° - 1.36 V ) + 2 e - Ca(s) E--2.85V - 2 e - 2 F (aq) E-…

A: In electrolysis,   Anions move towards anode and anion which have lower reduction potential is get…

Q: Which of the following aqueous solutions are good buffer systems? O 0.33 M ammonia + 0.39 M sodium…

A: Buffer solution: The solution that resists the change in pH is known as a buffer solution. The…

Q: For the overall chemical reaction shown below, which one of the following statements can be rightly…

A: Rate law :-  The equation which shows the dependence of rate of reaction on concentration of…

Q: NH2 HO,S. „sO,H но amina diazotada copula con

A: A dye is a colored substance and it is obtained by reaction of diazonium salt with phenols or…

Q: The activation energy for the reaction CH3CO - CH3 + CO Is 71 kJ/mol. How many times greater is the…

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Q: Br/CH3COOH OCH3 16

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Q: An electrochemical cell is constructed with a Zn (s) electrode in contact with a 0.0520 M solution…

A: Given: Concentration of Zn2+ = 0.0520 M Concentration of Ag+ = 0.00420 M And temperature = 5.0 oC

Q: An 80.0 g sample of a gas was heated from 25 °C to 225 °C. During this process, 346 J of work was…

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Q: can someone please help with these reactions? Complete solution

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Q: A weak acid has Ka of 4.47 x 10-4.  What is pKa for this weak acid?

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Q: For the reaction PCI3(9) + Cl2(g) = PCI5(g) at a particular temperature, Ke = 24.3. Suppose a system…

A: Given :  PCl3(g) + Cl2(g) <-----> PCl5(g)  [PCl5] = 0.60 M [PCl3] = 0.10 M [Cl2] = 0.15 M  Kc…

Q: A sample of gas occupies a volume of 72.1 mL. As it expands, it does 122.1 J of work on its…

A: Given data :

Q: A reaction is experimentally found to follow the rate law, Rate = k[Aj? where k = 0.355 M'min1.…

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Q: Which of these situations will result if some CHalgi is removed from the reaction COlgi - 3Hzlg) -…

A: We have to predict the resultant situation.

Q: 4. Br + CIO + H* Br, + Cl¯ + H,0 2+ 4+ 5. Sn + VO, + H → Sn + V²* + H,0 »

A: The answer is as follows:

Q: F. How many grams of NO would be made from 16 grams of Cu in the reaction.

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Q: Choice 141 - 0-12 snucoon 564 + 10-1 jinucieon 137 - 10-2 sinucleon 548 - 10- Jinucieon

A: According to the question, we need to determine the nuclear binding energy of potassium-40.  Given,…

Q: Compare and Contrast Henry's Law and Boyle's law. Give examples of each, and explain how they affect…

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Q: -2.421 x 108 -2421 x 101 -2421 x 103 1458 x 1016 -1458 x 10

A: Given,  Mass defect (□m ) = -0.1620 amu (1 amu = 1.67 ×10-27 Kg) □m = -0.1620 × 1.67 ×10-27 =…

Q: Which of the following substances are weak electrolytes? HCl, HC2H3OO, NH3, KCl A) HCl, KCl B)…

A: ->HCl , CH3COOH , NH3 , KCl