How many moles of sugar was added to 82.90 g of ethanol to change the freezing point of ethanol by 2.750 ̊C? (F.Pt. ethanol = -116.2 ̊C) (Kf ethanol = 1.990 ̊C kg/mol)

Q: PROCEDURE 1000 mg L-asocrbic acid tablet (pulverized into fine powder) Molar mass of tablet = 176....

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

Q: (5e) Which two of the following compounds would you make a buffer of pH = 12.5. H3PO4 (MM=98.00 g/mo...

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Q: For a gaseous reaction, standard conditions are 298 K and a partial pressure of I bar for all specie...

A: Relation between equilibrium constant and delta G.....

Q: If 2.0 × 10-4 moles of  S2O2−8S2O82− in 50 mL solution is consumed in 3 minutes and   25  seconds, w...

A: The rate of the formation of the product or the rate of disappearance of the reactants is known as t...

Q: 4: khat mass of magreszum qucttal is vepurred to ead with 25tn of 2 moldni find thie voluve of compl...

A: The Mg metal is required 6.0763 g. The H2 gas produced = 5.6 L.

Q: Arrange the following in order of decreasing acidity, i.e., strongest acid first. HF (KA = 6.8 x 10*...

A: Greater is theKA value  , more will be the acidity of the species. So, let's arrange in the decreasi...

Q: 10. Differentiate between double salt and complex salts with suitable examples. Based on Werner's th...

A: Double Salts :  These exist only in solid state and dissociate into constituent species in their so...

Q: 4. a) Predict the major product of the following reaction: excess b) Provide the mechanism for the r...

A: The answer is as follows:  

Q: Which of the following is not a characteristic of water due to hydrogen bondir Solvent Adhesion Cohe...

A: Solvent is a characteristic of water due to hydrogen bonding.

Q: Complete the data sheet with relevant solutions in solving for the amounts needed in the experiment

A: Here we have to keep following points in mind  1. We are making homogeneous solution, in homogeneous...

Q: 5. Give the balanced molecular equation for the reaction of sodium chromate (Na2CrO4) solution with ...

A:   • We need to write the balanced molecular equation for the reaction of sodium chromate with alumin...

Q: Is 4-bromo-4-ethylhept-1-ene capable of hydrogen bonding? if no explain why?

A: Hydrogen bonding : is the strongest intermolecular force formed by the attractive force between a hy...

Q: Calculate the change of the entropy of the reaction for the formation of ammonia from nitrogen and h...

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Q: Which of the following has the largest number of molecules? O1g of formaldehyde, CH,0 Oig of sucrose...

A: The largest number of molecules is present in

Q: an arrow from a reagent write the formula(s) for the ion(s) present in solution. Write the procedure...

A: The answer is as follows:  

Q: (e)

A: Complete solution is given below in next step with these conformation.  

Q: What is the overall order of the following reaction, given the rate law? 2 X + 3 Y → 2 Z Rate = k[X]...

A: For the given reaction., 2X + 3Y     ----->       2Z According to Rate law Rate of the reaction i...

Q: Peacciones presentadas siguen el mecanismo SN1 o SN2. 1 H3C CH,01 CH,OH CH CH,COO-1 H3C Br CH,COOH C...

A: SN2 preferred primary alkyl halide to give nucleophilic substitution reaction while tertiary alkyl h...

Q: 2p, 2p. 2p, 2p, 2p. 2p, 2р, 2р. 2р, 2p, 2p. 2py 25 2s 2s 2s Use MO theory to determine the bond orde...

A: Determine bond order of the given species---

Q: What mass of aluminum metal can be produced per hour in the electrolysis of a molten aluminum salt b...

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Q: Given the following experimental data, calculate the molarity and the pKa of the acid analyte (HA) i...

A: Solution is given below in next step in jpeg format

Q: Does an electromagnetic spectrophotometer using photoelectron spectroscopy exist? Explain why or why...

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Q: D: Define and draw the Unit Cell and give an example.

A: A space-lattice can be subdivided into a number of small cells known as unit cells. 

Q: At 150°C, Kp = 1.2×102 for the reaction 12(g) + Br2(g) 5 2Brl(g). A rigid cylinder at that temperatu...

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Q: Using Brønsted-Lowry definitions, designate each of the following as a strong base (SB), a weak base...

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Q: What does the specific heat of a substance tell you when you compare it to the specific heat of anot...

A: In the given question we need to tell how would we compare substances on the basis of their specific...

Q: how many molecules of acetylene (C2H2) are in 1.79 moles of acetylene?

A: We know that according to mole concept., Number of molecules in one mole = Avogadro Number = 6.022×1...

Q: Differentiate between homogeneous and heterogeneous catalyst

A: Homogeneous catalyst: when the reactants and the catalyst are in the same phase that is solid, liqui...

Q: Consider the following reaction: 2 ClF (g) → Cl2 (g) + F2 (g) Assume that an experiment is carried ...

A:

Q: What are the shapes of molecules with the various hybrid orbitals?

A: To give: Shapes of molecules with the various hybrid orbitals.  

Q: 7 2.00 8.00 8 1.00 9.00

A:

Q: Spectrophotometry and Beer’s Law Absorption of Light of Dyes in Beverages   A calibration curve f...

A: The concentration of orange dye is 1.5221×10-3 M.

Q: ent the forms of the following EOS and th VR Kesler-Plocker cevitch Jofee

A: Given as, T= 100oC= 100+273K= 373 K, R= 0.0821 atm lite mol-1k-.

Q: Which chemical reaction below results in no change in the number of electrolytes present in the solu...

A: The substances which dissociate into ions (cations and anions) when they dissolve in polar solvent l...

Q: a) You are given a solution and asked to determine what cations are present in it. the solon of HCl ...

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Q: 4-bromo-4-ethylhept-1-ene polar or nonpolar? why

A: The answer is as follows:  

Q: Calculate the pH of a solution containing 0.70 M HC2H302 and 0.25 M NaczH302. The K, for HC,H;0, is ...

A: Given :-  Ka for HC2H3O2 = 1.8 × 10-5 concentration of HC2H3O2 = 0.70 M  concentration of NaC2H3O2 =...

Q: Calculate the solubility at 25 °C of BaCro, in pure water and in a 0.0140M BaCl, solution. You'll fi...

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Q: LINO3 is added to water. Will it change the pH, and if so, how? Yes, and the pH will be 7. You want...

A: We can determine if a salt added to water will make pH of water more acidic,basic or will remain unc...

Q: Use the given: I. 0.02 m of glucose, II. 0.03 m of FeCl 3,  III. 0.02 m of NaCl, IV. 0.03 m of MgCl ...

A: Colligative properties: The colligative properties are those properties of solutions that depend on ...

Q: 12. What is the significance of the following stereochemical result: Co0 COo- mutase H- OH CH OP CHO...

A: Isotopic labelling is one of the ways to track the movement of atoms in any mechanism. Mutase enzyme...

Q: An iron nail rusts when exposed to oxygen. What volume of oxygen gas is required to react completely...

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Q: Consider the reaction A+2B⇌CA+2B⇌C whose rate at 25 ∘C∘C was measured using three different sets o...

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Q: The titration curve shown was obtained for the titration of a 0.297 g sample of a solid acid with 0....

A: 1.)  The volume of KOH needed to reach equivalance point can be determined from the given titration ...

Q: Arrange the following in order of highest to lowest concentration of OH ions, i.e., the most basic t...

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Q: Given the data below, plot the titration curve of the unknown amino acid. Determine the isoelectric ...

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Q: Draw the major product of this reaction. Ignore inorganic byproducts. H. 1. NABH4 2. Neutralizing wo...

A: Addition of hydride as nucleophile to the carbonyl carbon of aldehyde group  Protonation as neutrali...

Q: When sodium acetate is added to a solution containing sodium citrate, the equilibrium will shift to ...

A: Sodium acetate is a basic salt as it formed from a strong base Sodium hydroxide and a weak acid acet...

Q: Consider the following reaction: 2 G (g) =A (2) + 2B (g) AH = -3.42 x 104 kJ/mol If the reaction is ...

A: As per Le-Chateliers principle,  When a system under equilibrium is subjected to any kind stress ( c...

Q: Calculate the pH of a solution that is 0.20 M HOCI and 0.88 M KOci. Kg = 3.5x10-8 pH =

A:

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.