Which of the following instruments is based on the interactions between a soft cantilever spring with different tips that makes contact with the sample? Scanning electron microscope Transmission electron microscope Atomic force microscopy Scanning tunneling microscopy

Q: 9. (a) Derive an expression for Langmuir adsorption isotherm for surface reactions with and without…

A: The answers are given below:

Q: How much 0.0500 M EDTA is needed to titrate the Mg and Ca in a 0.2385-g sample that is 92.5%…

A: Given,  Molarity of EDTA = 0.0500 M  Mass of the sample = 0.2385 g  Mass percent of dolomite = 92.5%…

Q: If given the choice of a complexometric titrant among the choices below, which would be the best…

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Q: Draw the structure and write its IUPAC name.

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Q: How many mL of 0.500 M NaOH should be added to 10.0 g tris HCI to give a pH of 7.60 in a final…

A: Here is your answer...........

Q: Name 10 dissolved substances that negatively affect the environment

A: Dissolved salts may be present in high enough concentrations to be toxic. Eg: naturally occurring…

Q: Briefly describe the intermolecular forces present in tetrahydrofuran liquid that need to be broken…

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Q: Question 15 Caffeine, benzoate, and aspartame content of mountain dew soda was determined using…

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Q: 1. What Grignard reagent and carbonyl compound are needed to prepare the alcohol below: H3COH CH3…

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Q: Question 5 How is the reduction potential measured in the potentiometer for the analyte solution?…

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Q: lve the practice problems The solubility of silver chloride, AgCl, is 1.26 x 10-5 M at 25 °C. The…

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Q: For each of the compounds below, if they exhibit resonance, draw a resonance structure below the…

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Q: salicylic acid + methanol -->   a methyl salicylate + water   b methyl salicylate + acetone   c…

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Q: Consider the reaction below. Which is the oxidizing agent? * Fe + O₂ + H+ Fe+2+ H₂O. A. Fe B. 02 C.…

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Q: A 0.1504-g sample of impure Na₂CO₃ (106.00g/mol) was analyzed via Volhard method. After adding 50.0…

A: Here we are required to find the purity of Na2CO3.

Q: 1. Consider the following data set. Concentration, mg/L 0.100 0.200 0.300 0.400 0.500 Write capital…

A: We have find out slope, intercept and concentration of an unknown sample with an absorbance reading…

Q: Translate the given theoretical conformer from the wedge-and-dash drawing into its Newman…

A: The given structure is staggered form because in wedge-dash structure three atoms on back carbon…

Q: Number the groups/ substitutes based on Chan - Ingold - Pregold priority rules. Please also so B. C…

A: Stereochemistry is branch of chemistry in which we deal with three dimensional orientation of atoms…

Q: A cell consisting of a saturated calomel electrode and a lead ion electrode developed a potential of…

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Q: What is the expression for the solubility product constant, Ksp, of calcium phosphate, Ca3(PO4)2…

A: Solubility product constant (Ksp); When a slightly soluble ionic compound is mixed with water,…

Q: 7. Radioactive decay is a first-order kinetics process which follows the integrated rate equation In…

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Q: Will a precipitate form when 25 mL of 0.020M AgNO3 is mixed with 35 mL of 0.020M Na2SO4? (Ksp Ag2SO4…

A: Given,  Molarity of AgNO3 = 0.020 M  Volume of AgNO3 in mL = 25 mL  Molarity of Na2SO4 = 0.020 M…

Q: Which of the following is the correct flow of the mobile phase in HPLC? Solvent degasser>Guard…

A: The mobile phase in HPLC is used to transport the sample via seperation column and there by detector…

Q: What is the [OH-] if the [H3O+] is 6.12x10-5 M?   2.12x10^-5 M   2.16x10^-6 M   1.26x10^-8 M…

A: Given,  [H3O+] = 6.12 x 10-5 M  What is the concentration of OH- in the solution = ?  Options are :…

Q: Five different fertilizers were analyzed by two methods. Phosphate (P:Os) was analyzed using…

A: a ) Average value for Gravimetric result : ( 25.5 + 9.2 + 26.2 + 50.5 + 25.6 ) / 5   = 27.4

Q: At the standard temperature of 0°C and the standard pressure of 1 atm, how many moles of gas does it…

A: Given,  At the standard temperature of 0°C and the standard pressure of 1 atm, the moles of gas does…

Q: 1. Circle the compounds below that will dissociate to give ions in water (Hint: think which one will…

A: According to the guidelines we are asked to solve only the first 3 subparts. Please post other…

Q: 2. Using a concrete evidence, discuss the acid-base property of water. eflector sends the reflecte…

A: According to Bronsted Lowry concept, acid is substance which is proton donor and base is substance…

Q: D= C=O CH3CH₂OH CH₂CH3 tetrahydrogestrinone (THG), a "designer" synthetic steroid HO aldosterone…

A: The ring structure that is common to all steroids is:

Q: What is the least amount of solution that can be made to totally dissolve 0.500 g of barium…

A: Given :  Mass of barium hydroxide = 0.500 gm  Molar mass of Barium hydroxide = 171.34 gm/mole

Q: Hydrogen gas is produced by the reaction between metallic aluminum and aqueous hydrochloric acid. 2…

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Q: What is being described in the following items? light that interacts with the solution light not…

A: The correct answer is given below

Q: Q2: Below are the results of the wavelengths for dissolving acetone in two solvents of different…

A: In order to solve this problem, we need to know a couple of concepts first. They are mentioned…

Q: Methyl isocyanate reacts with strong acids, such as sulfuric acid, to form a cation. For protonation…

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Q: - How would you prepare the following amines, using both Hofmann and Curtius rearrangements on a…

A: The Hofmann and Curtius rearrangement involves the conversion of carboxylic acid to an amine. The…

Q: (e) Write two synthetic strategies to Fischer carbene complex. Furnish the synthesis and application…

A: Answer is given below:

Q: Question 11 What is the relationship between Ksp and s for aluminum hydroxide? O Ksp = 108s5 O Ksp =…

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Q: The rate constant for a particular reaction is 2.7 x 10-2 s1 at 25°C and 6.2 × 10-2 s1 at 115°C.…

A: The rate constant increases with increase in temperature.  This is explained by Arrhenius equation.

Q: 45.21 mL of NaOH is used to reach the endpoint in titrating 0.8001 g KHP (204.22 g/mol). How much of…

A: The nfactor for NaOH is 1, for KHP is 1 and for H2SO4 is 2.

Q: A) Hybridization 1. What is the hybridisation of atoms A1, A2 and A3 in the following orbital…

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Q: For the following reaction, 3.64 grams of hydrogen gas are allowed to react with 48.9 grams of…

A: given,  mass of hydrogen gas = 3.64 g mass of iodine = 48.9 g    we need to calculate  mass of…

Q: Caffeine, benzoate, and aspartame content of mountain dew soda was determined using reverse phase…

A: Given: Concentration of standard Caffeine used = 0.70 mg/mL Concentration of standard Benzoate used…

Q: How many grams of NaNO3 is needed to prepare a 100 mL of 2M solution

A: Molarity is defined as number of moles of solute divide by volume of solution in liter

Q: Which of the following forms a molecular solid? O paladio (Pd) O C9H804 OC, grafito O CaCl2

A: There are various type of solid such as ionic solid, molecular solid and covalent solid. Ionic solid…

Q: Having the absorbance of 62.5 M solution is 0.222, what is the molar extinction coefficient if the…

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Q: Given the following reaction and instantaneous concentrations, 2?2?(?) ⇌ 2?2(?) + ?2(?) K = 15 [H2]i…

A: The equilibrium constant of a reaction is given by the ratio between the product's concentration to…

Q: Classify the phrases as pertaining to either sphingophospholipids (sphingomyelins),…

A: Sphingophospholipids and Glycerophospholipids are two classification of phospholipids according to…

Q: . Given 24/14 Si, a) Find the number of protons, electrons and neutrons in the neutral atom.

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Q: Determine the freezing point of a solution that contains 62.8 g of urea (CH 4N 2O) dissolved in 275…

A: freezing point of a solution is - 7.08 °C  .

Q: 0.4071-g sample of pure CaCO3 was transferred to a 500-mL volumetric flask, dissolved using a…

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