llustrate an NMR spectrometer and explain its working.

Q: Can the reaction of one black knight turning into two white knights (∆S = 1.33×10-23 J/K) ever be:…

A: given data (∆S = 1.33×10-23 J/K) or  (∆S = -2.87×10-23 J/K)

Q: The acid ionization constant for Pb(H₂O)62+ (aq) is 6.3x10-7. Calculate the pH of a 0.0498 M…

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Q: References) What is the boiling point of a solution composed of 17.0 g of urea, (NH₂), CO, in 0.600…

A: Given data, Mass of urea = 17.0 g Mass of water = 0.600 kg Kb for water = 0.5121 °C/m Boiling point…

Q: 22. If the solubility of O₂ at 0.190 bar and 25°C is 7.9 g/100 g H₂O, what is the solubility of O₂…

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Q: se the standard reaction enthalpies given below to determine AH°rxn for the following reaction: 4…

A: Which one of the following options is correct

Q: For the analysis of trace metals it is necessary to prepare solutions of very low concentrations…

A: The volume of a final solution is determined by the dilution equation. It is given as: M1V1=M2V2…

Q: Write the balanced COMPLETE ionic equation for the reaction when iron(III) chloride and sodium…

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Q: A 69.0 mL portion of a 1.50 M solution is diluted to a total volume of 218 mL. A 109 mL portion of…

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Q: What is peak multiplicity and how does multiplicity arise?

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Q: H-B(isoamyl)₂ /THF 2. H₂O₂/NaOH / water 1.

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Q: you have 2 solutions, one with a pH of 9 and another with a pH of 12, which one would have more OH-…

A: POH is equal to negative logarithmic of hydroxide ion concentration

Q: You Answered A sample of Cu has an original mass of 57.3 mg, and after 24.0 hours the sample mass is…

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Q: M3+ ion derived from a metal in the first transition metal series has five electrons in the 3d…

A: M3+ ion derived from a metal in the first transition metal series has five electrons in the 3d…

Q: 16. Which of the following structures is the CORRECT resonance structure of the following molecule:…

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Q: 11. The unknown solution is prepared by transferring 500.0 μL into a test tube and adding the BCA…

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Q: What is the relationship between the two structures shown? H3C H OH OH H CH3 H3C NOC- consitutional…

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Q: Consider the reaction.   2NaCl(aq)+Ba(OH)2(aq)⟶BaCl2+2NaOH2NaCl(aq)+Ba(OH)2⁢(aq)⟶BaCl2+2NaOH…

A: Precipitate does not give any ions in the reaction i.e. precipitate is insoluble in water.

Q: H ow many milliliters of water should be added to 1.5 L of a 20% w/v solution to prepare one…

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Q: 3. Fill in the following table: Solution Distilled water Apple juice White vinegar Cola Coffee Dish…

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Q: 18) Identify the CORRECT Lewis structure for a compound with a molecular formular CH3NCO :O-H (A)…

A: We have been given that molecular formula of compound is CH3NCO. We have been asked to identify…

Q: d) + KMnO4, KOH, cold

A: we have to draw the product formed in the given reaction of alkene

Q: 10) Which chemical species will be formed when a compound undergoes homolytic bond breaking? A)…

A: Homolytic bond cleavage takes place between a molecule having same atoms ie. Homonuclear diatomic…

Q: 3 180 120 I I 109.5 N-C-C H₂C HICI CH₂ 2 ī CH T What are the bond angles around nitrogen in this…

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Q: Explain how to make one litre of a 3.50 molar sodium hydroxide solution.

A: This question is related to stoichiometry. In this question, it is asked to make one litre of 3.50…

Q: Predict if the reaction will go in the forward or the reverse direction. Label each compound ion as…

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Q: When analyzing an IR spectrum, the most significant peaks usually are: a) Given by stretching…

A: IR spectroscopy is used to determine the functional groups present in the sample. Different…

Q: A sample of hydrogen has a mass of 43.9 grams. a. How many H atoms are there in the sample? atoms…

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Q: A 77.0 mL77.0 mL portion of a 1.70 M1.70 M solution is diluted to a total volume of 258 mL.258 mL. A…

A: given data  A 77.0 mL or 1.70 M total volume = 258 ml after dilution  129 mL portion of that…

Q: Using the equation for a propanoic acid solution  (CH3CH2CO2H,   p?a=4.874) to calculate the…

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Q: Question:- We performed a titration with EDTA to determine the presence of Calcium in a limestone…

A: Complexometric titration are the type of volumetric titration in which a complex formed by metal…

Q: Sulfur is present in a wide variety of compounds, including acid rain, fool's gold and other ores,…

A: HgS  Here oxidation state of Hg is + 2 , because S has -2 charge .  Hg  mercury  S2- sulfide

Q: Give the oxidation number of carbon in the following: a) HCO3 (select) ✓ b) CF₂Cl₂ (select) c) C₂H6…

A: In the case of neutral molecules the algebraic sum of oxidation number of all atom present in…

Q: What change in color will be observed when a basic solution with phenolphthalein indicator is…

A: Basic solution was titrated with strong acid in the presence of phenolphthalein indicator. The…

Q: Naming the glycosidic.

A: Naming of glycosidic bond:  It is named as alpha or beta, followed by numbers that correspond to the…

Q: Enter your answer in the provided box. How many grams of NaH₂PO4 are needed to react with 18.67 mL…

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Q: 10 A solution is -prepared by de dissolving 15.0g of NH3 in water. The final volume of the solution…

A: Molarity of solution is defined as number of moles of solute dissolved per litre of the solution.…

Q: The value of A, Hº at 25.0°C and one bar is +290.8 kJ for the reaction 2 ZnO (s) + 2 S(s) → 2 ZnS(s)…

A: We have given, Change in Internal energy ( ΔH ) = +290.8 kJ In above equation,  ZnO is in solid…

Q: The standard enthalpy of neutralisation between a strong acid and strong base is similar to the…

A: Room temperature is taken as 20oC or 25oC depending on the country. Calculation is done for both the…

Q: Use an eqaution to determine the overpotential for the OER (0.0591V) in acidic(0.1M HClO4) and…

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Q: a. How many molecules of carbon dioxide are present in 3.99 moles of this compound? molecules b. How…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: 9. For 3-fluoro-2-methylpentane, draw the Newman projection for the: (a) lowest energy conformation;…

A: Given compound : 3-fluoro-2-methylpentane

Q: Give an acceptable name for each carboxylic acid. (CH3), CHCH,CH,CH2CH,CH2COOH a. b. OH

A: We follow rules assigned by IUPAC to name an organic molecule.  Some of the rules are given below:

Q: Calculate the predicted 13C chemical shifts for styrene.

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Q: 17.38 Give an acceptable name for each compound. a. CH3(CH2)gCO,CH3 b. (CH3)2CHCH₂ CONH2 don C. d.…

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Q: An aqueous potassium carbonate solution is made by dissolving 6.796.79 moles of K2CO3K2CO3 in…

A: Given, moles of K2CO3 = 6.79 moles Volume of the solution = 3.40 L Molarity of K2CO3 solution = ?

Q: Suppose a 500. mL flask is filled with 0.90 mol of Br₂, 1.1 mol of BrOCI and 0.30 mol of BrCl. The…

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Q: What volume of a 0.5700.570 M NH4I solution is required to react with 831831 mL of a 0.2200.220 M…

A: Given :-  Pb(NO3)2(aq)+2NH4I(aq)⟶PbI2(s)+2NH4NO3  Concentration of NH4I(aq) = 0.570 M  Volume of…

Q: 2. Find the pH of a solution prepared by dissolving 12.43 g of tris (MW = 121.135 g/ mol) with 4.67…

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Q: Write the balanced dissociation equation for solid calcium phosphate in aqueous solution. If it does…

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Q: Classify each of these reactions. 2 HBr(aq) + Ba(OH)₂ (aq) - -> 2 H₂O(1) + BaBr₂ (aq) C₂H₂(g) +…

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