41.3-gram sample of a solution of naphthalene, C10H8(s), in benzene, C6H6(l ), has a vapor pressure at 20.0°C of 63.9 Torr. The vapor pressure of pure benzene at 20.0°C is 75.0 Torr. Assuming that naphthalene has a negligible vapor pressure over the solution, use the vapor pressure–lowering expression given by  ΔP1 = x2 P1° or  ( 1 – x 1 ) P 1° to calculate the mole fraction of naphthalene and the number of grams of naphthalene in the solution.

Q: 90 gm glucose dissolve in 500 g water. Molality of the solution is Select one: a. 4 b. 1.5 c. 1 d. 2

A: Number of moles is calculated by dividing the given mass with molecular mass.

Q: R .R allylic position benzylic position Benzylic cations, anions, and radicals are all more stable t...

A:

Q: A certain amount of benzene (Density y=0.985 g/mL1 was dissolved in 0.500 kg CCl4 to produce a solut...

A: (a) Solution -

Q: Simple Gas solubility concept question: Choose the answer that completes the statement. Japor pressu...

A: Given : We have to tell whose vapor pressure is greater.

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A: we are discuss whether the rehydration of copper(II) sulphate exothermic or exothermic process.

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Q: What does the "(<1%)" in the mass spectrum mean?

A: Mass spectrometry helps us to predict the structure of unknown organic compound on basis of the frag...

Q: The element in period 3, group 2: _________________ The element in period 5, group 13: ____________...

A: The correct assignment of the desired elements and their catagory can be done based on their presenc...

Q: Does the equilibrium lie to the left or to the right in the following reaction: H,co H-Br: 2 H;CO-H ...

A:

Q: 1. pH of a substance at 7 is how many times the concentration of a pH of 6.

A: Note - Since you have asked multiple question, we will solve the first question for you. If you wan...

Q: The reaction occurs in aqueous solution: NH4*(gg) + NO2(gg) → N2(g) + 2H2OU). The data below is obta...

A:

Q: If the total energy of a crystal is positive, is the bonding within the crystal stable? H

A: In this question we have to explain if the total energy of a crystal is positive , is the binding wi...

Q: rank leaving group abililty: Cl, MeCO2, Me, NMe2, OH

A: The leaving group ability is the rate at which a reaction takes place. Leaving groups can be anions,...

Q: Suppose that exactly 100 bacteria are added into a flask containing nutrients for the bacteria. The ...

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Q: b) OH Hemiacetal H3C D Compound D could be converted into a cyclic hemiacetal in the presence of an ...

A: Aldehydes on treatment with an alcohol in the presence of an acid produces hemiacetal.  

Q: A solution is prepared by dissolving 27.03 grams of FeCl3* 6H2O, and diluting to give a final volume...

A: Molarity is a concentration term for a solution. The molarity of a given solution is defined as the ...

Q: Vapor Pressure (kPa) at 20°C 2.33 5.85 58.96 LIQUID Y 4. Which liquid has the strongest intermolecul...

A:

Q: The standard enthalpy of formation of liquid water AH,° is -285.9 kJ/mole. Write the balanced chemic...

A: Given: The standard enthalpy of formation of liquid water is -285.9 KJ/mol.  

Q: Arrange the following e DECREASING atomic radius, rubidium, bromine, chlorine. A. Ca, CI, Br, Rb B. ...

A: The elements given are Ca, Cl, Br and Rb.  

Q: e molarity of

A:

Q: The rate constant k for a certain reaction is measured at two different temperatures: temperature k ...

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Q: Propose a reasonable biosynthesis of Fenchone from geranylpyrophos (+-Fenchone

A: Fenchone is an organic compound and appears as a colorless oily liquid. It is classified as a monote...

Q: 5. When Mr. Calvo heated up the water, the sugar dissolved 5. To make a solution, particles from one...

A: Since you have posted multiple questions as per guidelines we can answer only one per session . If y...

Q: Write the products structures and mechanisms CO2H A = (cat.) HO (a) NC CN LOME ? solvent Ph (i) (iii...

A: The Diels-Alder reaction is a chemical reaction between a conjugated diene and a substituted alkene ...

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Q: QUESTION 2 Based on the following synthetic route, cycloalkene J could be used to generate a cyclise...

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Q: draw a valid lewis structure for the molecule TeO2(lower exponent)Cl2(lower exponent) te is the cent...

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Q: the rate constant for the first-order decomposition of N2O is 2.97 s^-1. what s the half-life of the...

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Q: 3. Consider Lewis structure for hydrogen fluoride (HF). a. If hydrogen fluoride were to behave as an...

A: An acid donates proton while a base accepts proton.  HA---&gt; H+  +   A- HA is acid while A- is con...

Q: (a) Calculate the equilbrium partial pressures of Oy, NOCI, NO, and Cly. Peg(O2) -L Pey(NOCI) - Pe(N...

A:   Volume of vessel = 1 L Temperature = 2385 K Moles of Cl2 found at equilibrium = 0.008268 Given rea...

Q: A jogger runs a mile in 8.92 min. Calculate the speed in in/s.

A:

Q: coph COOH Ccatalyst} sotvent

A: Wittig reaction is the reaction of an aldehyde or ketone with the ylide generated from a phosphonium...

Q: sample of a gas is in a reaction vessel under a certain set of conditions such that it possesses 4.3...

A: ANSWER :   (a)We know a formula that entropy relates with the microstates :  S = K*lnW  Here :  S = ...

Q: milliliters

A:

Q: Write the reaction rate expressions for the reaction below in terms of the disappearance of the reac...

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

Q: draw a valid lewis structure for the molecule TeC2(lower exponent)Cl2(lower exponent) te is the cent...

A: Given : We have to draw the lewis dot structure of TeCl2 

Q: Show your solution (answer given): How many grams of KBr is required to prepare 150 ml of 2M soluti...

A: Molarity = 2M Volume of solution = 150 mL = 0.15 L Molar mass of KBr = 119 g/mol

Q: Why do we need to know the concept of chiral molecules

A: Chiral molecules are those in which carbon is attached to four different groups.

Q: Mix 300 liters of barium nitrate at a concentration of 0.01 mol/l and 300 liters of copper sulfate a...

A: Concentration of barium nitrate = 0.01 mol/L Volume of barium nitrate = 300 L Concentration of Coppe...

Q: 1. What is the pH of a buffer that contains 0.15 M CH,COOH and 0.10 M NACH,COO (K, = 1.8 x 10 )?

A: 1) Given, Concentration of CH3COOH solution = 0.15 M [CH3COOH] = 0.15 M Concentration of NaCH3COO so...

Q: A compond has a molecular ion peak at M/Z = 72 in the mass spectrum. It has a sharp peak around 1730...

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Q: b) Which of the flowing reactions will have the faster rate and give a better yield? Use drawings of...

A: Solution -

Q: Which electron-dot formula is correct for CO,?

A: Given : We have to write the electron dot formula for CO2.

Q: Indicate the type of IMF of the each and rank them based on increasing intermolecular forces

A: As per the guideline, since you have asked multiple questions, we have solved the first question for...

Q: Select the answer that properly names all of the functional groups in the molecules below: H A B O A...

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Q: Calculate Gcv of a coal sample uf

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Q: ACTIVITY/EXERCISES Direction: Graph the heating curve of ethanol using the information given. Check ...

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Q: In an experiment, 1.0 mol each of H2(g) and I2(g) are placed in an empty 5.0-L flask and the flask i...

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Q: A 0.537 g sample of steam at 103.2 ∘C is condensed into a container with 5.60 g of water at 16.7 ∘C....

A: Given: Mass of steam = 0.537 g. Initial temperature of steam = 103.2 oC Mass of cold water = 5.60 g....

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.