PQ-28. Which pair of elements is listed in order of decreasing first ionization energy? (A) Na, Mg (B) Mg, Al (C) Al, Si (D) Si, P

Q: at is the formula of the coordination compound containing anion [Fe(OH)6]3- and ion Na* ? а.…

A: Which one of the following is correct answer

Q: The density of so LIF IS about 2,640 kg/m ute the nearest- ighbor dist in LIF, that is, tne distance…

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Q: Br

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Q: (Q67) What is the entropy change (in J/K) in the universe (ASuniverse) that occurs when nitrogen and…

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Q: absorbed for a given chemical reaction… using Hess’ law for a net reaction from a  series of…

A: Example of Hess' law, If we find t heat of reaction of A + B ----> D + E + P If above chemical…

Q: Electron configuration corresponds to the atom of Zn is: a. 1s2 2s2 2p6 3s2 3p6 4s2 3d10 b. 1s2 2s2…

A: Atomic number of zinc is 30.  Zinc belong to d block elements

Q: Three common compounds used in "ice melt" are magnesium chloride, calcium chloride and sodium…

A: Hii there, As there are multiple sub parts posted. we are answering first-three sub parts . If you…

Q: Balance the following oxidation-reduction reaction that occurs in an acidic solution using the…

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Q: After heating a 1.095 gram sample of potassium chlorate, KCIO3, the final mass of the residue was…

A: Given, mass of sample of potassium chlorate (KClO3) = 1.095 g The final mass of the residue = 0.682…

Q: 2) Consider the coordination compound [Pt(NH3)4(OH)2]SO4. the problem-solving process steps: a)…

A: Coordination compounds are those in which the metal ion is coordinated to the different neutral or…

Q: How many moles of NO(g) can be produced in the reaction of 3.00 mol NH,(g) and 4.00 mol O,(g)?…

A: Limiting reactant :- A reactant which is present in lesser number of moles than required as per…

Q: Describe how you would prepare 2.00 L of 0.150 M perchloric acid from a concentrated solution that…

A: Number of moles of solute = Molarity of solution x volume of solution in L % w/w concentration of…

Q: Consider three 1-L flasks at STP. Flask A contains NH3 gas, flask B contains NO2 gas, and flask C…

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Q: Consider an ideal diatomic gas in a piston, at T = 22.7°C and atmospheric pressure (1.01 x 105 Pa)…

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Q: Copper commonly occurs as the sulfide mineral CuS. The first step in extracting copper from CuS is…

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Q: Mass of oleic acid (glyceryl trioleate)=3.978g Mass of soap (sodium oleate)=3.8954g Moles of Oleic…

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Q: Build a titration curve for the following scenarios. Make sure to label your accesses and any other…

A: Titration curve is formed by plot of pH of analytes vs volume of titrants as the reaction proceeds.

Q: he ammonia – ammonium chloride buffer keep the pH: а. above 14; below 7; с. above 7 O d. =7

A: The correct answer about ammoniacal buffer is given below

Q: Calculate the density of nitrogen at STP. Express your answer in g/mL Show your work

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Q: The breakdown of acetaldehyde to methane and carbon monoxide were measured at 3 temperatures.…

A: A question based on kinetics of reactions in solution that is to be accomplished.

Q: A "dead" 12-Volt lead/acid storage battery has 11.30 g of PbSO4 (molar mass = 303.3 g), deposited on…

A: Answer: This question is based on Faraday's first law of electrolysis which suggests that 1 mole…

Q: oxidation number

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Q: The thiamine pyrophosphate (TPP)-dependent enzyme benzoylformate decarboxylase catalyzes the…

A: Thiamine pyrophosphate (TPP) is a coenzyme useful for the cleavage of carbon-carbon bond. The C-2…

Q: Which of the following molecules can be used as a monomer to generate this polymer? n So the…

A: A polymer is a large molecule that is formed by the repetition of small units called a monomer, and…

Q: Translate into condensed structural formula

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Q: What is the organic product? NaOC,H; H* CH;O- OC,HS CH-CH-C-oC,Hs + HOC,H5 I. C,H;Q III OH CHOCH O…

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

Q: Alcohol aqueous solution can be regarded as ideal dilute solution at 370.26 K, the total vapor…

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Q: 4) What is the pH of a buffer solution, prepared by mixing of 75 mL 0.1 M CH3COOH solution and 150…

A: In this question we have to tell the PH of the buffer solution.

Q: If a tree dies and the trunk remains undisturbed for 1.620 x 104 what percentage of the original 1*C…

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Q: The normal boiling point of methanol is 64.7°C. A solution containing a nonvolatile solute dissolved…

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Q: L; this is possible because Determine which will best complete this: A secondary cell is one which O…

A: Primary and secondary cells convert chemical energy into electrical energy. In these cells the free…

Q: (Q75) The decomposition of gaseous nitric acid into its element is a nonspontaneous process with a…

A: 1.) ∆Grxn can be seen using formula :  ∆Grxn = ∆G°rxn + RTlnQ.  Where , Q is reaction quotient .…

Q: 3. A 400.0 mL sample of an aqueous solution at 25 °C contains 23.8 mg of an unknown nonelectrolyte…

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Q: Fluorine-18 is a radioactive isotope use in a variety of medical imaging procedures including…

A: Half-life of 18F isotope = 1.83 hours

Q: 5. Predict the geometries of NF, using the VSSPR method with the following steps Step 1) Draw the…

A: The ammonium cation is a positively charged polyatomic ion with the chemical formula NH4+. It is…

Q: 7.) Electrochemical cell potentials can be used to determine equilibrium constants that would be…

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Q: URIC ACID vs. CYSTINE II. Complete the table. Choose the answer from the box below.   URIC ACID…

A: URIC ACID CYSTINE Color Yellow-brown Colorless Solubility in Ammonia Insoluble Insoluble…

Q: You wish to prepare a solution that is 12% sodium chloride by mass How much sodium chloride is…

A: Given :-  % (w/w) of NaCl solution = 12 %  Mass of solution = 2.0 kg  To calculate :-  Mass of NaCl…

Q: Mercury vapor contains Hg atoms. What is the volume of 201 g of mercury vapor at 822 K and 0.248…

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Q: Calculate the pH of 0.1 M KHCO3.

A: Given :- concentration of KHCO3 solution = 0.1 M  To calculate : pH of solution

Q: How will E°cell for the reaction change if all of the stoichiometric coefficients are doubled? MnO4…

A: Given reaction is  MnO4- + S2- -----> MnO2 + S  The standard cell potential for the reaction is…

Q: What Have I Learned So Far? What will be the boiling point and the freezing point if you were to…

A: Given :  Molality of aqueous solution of glucose = 0.5 mol/kg

Q: Question 45 This type of pump is used to move mobile phase through a CZE column: Reciprocating pumps…

A: Question 45:  This type of pump is used to move mobile phase through a CZE column: Answer is: None…

Q: A calorimeter holds 50 g water at 22.0°C. A sample of hot iron is added to the water. The final…

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Q: Give a clear explanation handwritten answer...give the mechanism for Friedel acylation with curved…

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Q: VISUALIZATION Batteries Zn(s) + 2 OH (aq) –→ ZnO(s) + H20(e) + 2e 00:18:) + H20(2) + 2e¯ CC {e=…

A: The given half-reactions are: Zn(s)+2OH-aq→ZnOs+H2O(l)+2e-HgOs+H2O(l)+2e-→Hg(l)+2OH-aq

Q: n(s) + 2 OH"(aq) ZnO(s) + H20(e) + 2e 0:00 16:) + H20(8) + 2e¯ CC {e LH"( sider the animation…

A: Oxidising agent is the one which itself gets reduced  Here HgO is an oxidising agent  Because it is…

Q: Predict the product

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

Q: Explain why order of operations in this synthesis is important. What product would you form instead…

A: HNO3, H2SO4 is nitrating mixture (adds -NO2 on benzene)  Br2, FeBr3 (adds -Br atom on benzene ring)…

Q: Of the reactions shown below (reactants shown only), which reaction does NOT result in a carboxylic…

A: In this question we have to tell which reaction does not result in a carboxylic acid as a product.