Find the molecular formula of the alkane represented in the mass spectrum. Relative Abundance 100 90 80 70 60 50 40 30 20 10 0 10 20 29 30 molecular formula: 40 43 50 C₂Hx 57 60 m/z 71 Th 70 80 85 90 100 100 110 Replace the su

Q: 1 liter 0.5 M phosphate buffer (pH = 7.4) is mixed with 500 ml 1 M K₂HPO4 and 500 ml water. What is…

A: Given data  Phosphate buffer = 0.5M pH= 7.2  K2HPO4= 1M  Pka= 7.2

Q: Use constant-volume calorimetry to determine energy change. A 0.916-g sample of glutaric acid…

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

Q: Write balanced chemical equations for each of the following descriptions of a chemical reaction.…

A: Given  Write the balanced chemical reaction equation

Q: Question: If the radial vector (r) for the representation of s-orbital is: Create a spreadsheet to…

A: s orbital is a spherically-shaped region describing where an electron can be found, within a…

Q: Use the rules (in order) to assign oxidation numbers to each of the elements in the compounds below.…

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Q: Liquid hexane CH3CH24CH3 reacts with gaseous oxygen gas O2 to produce gaseous carbon dioxide CO2…

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Q: What is the major organic product in the reaction shown? 02 04 03 01 = 3) Br Br 4) HBr Br Br

A: Alkene give addition reaction when HBr react with alkene it forms alkyl halide as a product.

Q: Arrange the following species in the order of decreasing ionic radii. Explain your answer. Ar, P, K,…

A: Atomic radius: The distance between the nucleus and the outermost electron is known as the atomic…

Q: (d) What is the molarity of MCIO3 in Solution A? 2. Use the identity of MCIO3 and the decomposition…

A: #1: #(d): The identity of the chlorate is KClO3 with a molar mass of 122.44 g/mol  Moles of KClO3 in…

Q: Calculate the osmotic concentration of a solution that contains:                 100 mM NaCl…

A: We know that osmotic pressure is a colligative property and is depends on the number of particles in…

Q: These are some objects from the scale tool. Rewrite them in order from smallest to largest Incorrect…

A: Here, we need to arrange the given substances(or particles) in ascending order in terms of their…

Q: What is the heat, q, in joules transferred by a chemical reaction to the reservoir of a calorimeter…

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Q: 5. Classify the items in no. 4 according to (i) type of functional group and (ii) number of carbon…

A: Aldose and ketose sugar: A monosaccharide that contains polyhydroxy and aldehyde functional group is…

Q: Using your understanding of electrostatic forces, effective nuclear charge, and electronic…

A: Atom consists of subatomic particles electrons, protons and neutrons. In an atom, there is nucleus…

Q: What is/are the function/s of calcium chloride in the extraction?

A: Anhydrous Calcium chloride (CaCl2) is used as drying agent in the extraction of caffeine from tea…

Q: When we multiply a chemical equation by a factor, the equilibrium constant is raised to the root of…

A: When we multiply a chemical equation by a factor, the equilibrium constant is raised to the root of…

Q: Which is the order from the strongest acid to the weakest acid for these species?

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Q: reacts with gaseous oxygen gas (0₂) to produce gaseous carbon dioxide (CO₂) and gaseous water (H₂O).…

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Q: ہو رہے Br HO H2SO4 `OH

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Q: Carbon dioxide is a greenhouse gas. Which Lewis structure below is correct for carbon dioxide? O…

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Q: 5. Solid potassium sulfide, K₂S, is slowly added to 175 mL of a 0.0460 M iron(II) nitrate, Fe(NO3)2…

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Q: Predict the reactants of this chemical reaction. That is, fill in the left side of the chemical…

A: An acid reacts with a base to form salt and water. A general acid-base reaction is as follows:

Q: 1. Calculate the pH of a 5.8 x 10-8 M solution of KOH(aq) at 25 °C. Report the answer to the…

A: Note: As per our guidelines, we are supposed to answer only one question when multiple questions are…

Q: The elements X and Y combine in different ratios to form four different types of compounds: XY, XY₂,…

A: A question based on molecules that is to be accomplished.

Q: The equilibrium constant, K, for the following reaction is 1.31×10¹² at 307 K. NH4HS(s) NH3(9) +…

A: The balanced equilibrium reaction is: NH4HS(s)  ⇌ NH3(g) + H2S(g) ; K = 1.31*10-2    Equilibrium…

Q: Part 3. Predict the SN2/Radical Product. Predict the major organic product for each of the following…

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Q: Write the empirical formula of at least four binary ionic compounds that could be formed from the…

A: Since, Empirical formula is the simplest ratio of its substituents present in the sample. Thus,

Q: Predict the reactants of this chemical reaction. That is, fill in the left side of the chemical…

A: Given -> Products ->  Ca(ClO3)2(aq) + H2O(l)

Q: In the Results section of this handout, the table does not allow you to make entries for some of the…

A: In the result section, reaction which do not occur are not allowed for entries and the reason for…

Q: Provide the correct IUPAC name for the compound shown here. H₂C. 5- 1- 6- 2- CH3 cyclo tri iso di…

A: Nomenclature of anhydride compounds is based on the numberings of functional group. And later…

Q: Which factors have an affect on the rate of reaction?

A: The rate of the reaction is the measure of the speed of the reaction. It is measured as the change…

Q: The compound shown here is classified as what type of amine? H A) primary B) secondary C) tertiary…

A: For the first question, we have to find type of amine. For the second question, we have to to find…

Q: the stereocenter labelled in blue has an  a. R absolute configuration b. S absolute configuration

A: RS nomenclature: The RS nomenclature is an important nomenclature system for denoting the…

Q: solid zinc metal + oxygen gas → solid zinc oxide HCl (aq) + magnesium hydroxide (aq) → magnesium…

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Q: MeO NH₂ ala Ph Et3N, CH₂Cl2

A: Amine react with acid chloride in the presence of base to give an amide. The general formula of an…

Q: A "Unified Formula" for Degrees of Unsaturation (a.k.a "Index of Hydrogen Deficiency") C = #carbons…

A: Degree of unsaturation refers to the total number of rings and pi bonds in a molecule. This helps in…

Q: Which of the following has the smallest atomic radius? SOCI Ο Al O Na O Ca ORb < Previous

A: Atomic radius of elements is increases top to bottom in a group.     Atomic radius of elements is…

Q: (a) Use the following data for NH3 (g) at T = 273 K to evaluate B2P (T). (Here Z is the…

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Q: Aqueous hydrobromic acid HBr reacts with solid sodium hydroxide NaOH to produce aqueous sodium…

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Q: A term that describes the number of bonds formed between two atoms. Answer: The valence electron…

A: Here we have to write the term which describe number of bond between two atoms, valence electron…

Q: The hybridizations of nitrogen in NF3 and NH3 are respectively. O sp², sp2 sp3, sp3 O sp², sp3 sp,…

A: If steric number is equal to 2 then hybridization is sp.   If steric number is equal to 3 then…

Q: Show the chemical equation involved and explain the chemistry behind the color change in: Red…

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Q: There is a system in which solid colloids (density = 2.5 g/cm^3) with a particle diameter of 300 nm…

A: Diffusion and sedimentation in solid colloids.

Q: For each of the substrates below, identify whether: (A) the rate of substitution doesn't depend on…

A: A question based on introduction to organic chemistry that is to be accomplished.

Q: If Arrhenius plot has the equation y = -4.793 × 10^4 x + 45.7, calculate the activation energy in…

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Q: Consider the isotope nickel-60 which has the following nuclear symbol, nickel-60.  Which statement…

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Q: Determine the standard heat of each of the following reactions at 25°C: 3NO2(g) + H2O(l) → 2HNO3(l)…

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Q: When 25.1 g NaCl and 27.2 g H 2SO 4 are mixed and react according to the equation below, how much…

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Q: Use constant-pressure calorimetry to determine enthalpy change. The salt cesium chloride is soluble…

A: The mass of CsCl dissolved = 8.87 g The mass of water = 119.00 g The initial temperature = 25.00 ∘C…

Q: A beaker contains 0.00500 M silver and lead(II) ions. A concentrated sodium bromide solution PbBr₂…

A: ksp of AgBr = 5.35 x 10-13 ksp of PbBr2 = 6.6 x 10-6+

NMR Spectroscopy

NMR stands for Nuclear Magnetic Resonance in which the study of different molecules is done based on the interaction of radiofrequency electromagnetic radiations with the nuclei of molecules placed in a strong magnetic field. A precise study of spectra of visible light and all bands of electromagnetic radiation is called spectroscopy.