An aqueous lactose (C12H22011) solution of unknown concentration is found to have a freezing point of -0.873 C. Calculate the normal boiling of water and partial pressure of water at 30 °C of this solution. (Kfp = 0.52 °C/M, vapour pressure of pure H2O at 30°C is 31.50 mmHg)

Q: Choose the correct functional groups for the circled areas in the provided structure. For A [Select]…

A: The functional group is defined as the most reactive part of the molecule.

Q: Year pre 1970 Av mass (g) 1969 3.0878 1970 3.06666 1971 1972 1973 1974 3.06580 1975 3.09966 1976…

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Q: Substance X is known to exist at 1 atm in the solid, liquid, or vapor phase, depending on the…

A: Answer:When a solid substance is heated, its temperature increases till its melting point. On…

Q: Calculate AGO' for the reaction A + B C + D if [A] = 5.9 µM, [B]= 2.9 µM, [C]= 6.4 μM, and the [D]=…

A:

Q: I want to know all the resonance structures Example Anisole Banzaldehyde

A: In this question we have given two organic compounds that are anisole and benzaldehyde and we have…

Q: 6. What is the pH value of a 0.10M CH NH,NO, solution? The Kb of CH NH, is 4.4x10-4

A: The concentration of Ch3Nh3No3 solution is 0.10 M .The kb value = 4.4 ×10-4 .

Q: What is the correct common name for the compound shown here? CH3 CI Br

A: The name of the compound in which a methyl group attached to benzene is known as toluene.

Q: Which functional groups are present in the molecule shown? Select all that apply. Alcohol Alkyne…

A: The special type of groups present in the molecule which impart unique characteristics to a molecule…

Q: The total volume of the PCR sample is 50 ul. What volume of the PCR buffer is needed if it is…

A: If the PCR buffer is supplied as a 2x concentration and you want to prepare a total PCR sample…

Q: 2. Copper sulfate is widely used as a dietary supplement for animal feed. A lab technician prepares…

A: Provided amount of CuSO4(w)=40 gMolar mass of CuSO4(m)=159.6 g/molVolume of stock solution=500…

Q: 3. What is the geometry with respect to the following atoms in problem 1? (a) CH3CN C1 (b) CH₂CHNH2…

A: Lewis structure is a structural formula used to predict the geometry, polarity of compounds. It…

Q: What is the hybridization for each of the highlighted atoms? The shape? The bond angle?

A: Hybridization is the phenomena of mixing of atomic orbital characters, to form same number of new…

Q: metal and zinc sulfate. V. 1. CHEMICAL EQUATION Write a BALANCED chemical equation to represent this…

A: Balanced chemical equation: it can be define as a reaction in which number of atoms of all the…

Q: What is the molarity of a saturated solution of Ag,S? Ag₂S has a ksp of 1.6 X 10-4⁹ and it has a…

A: Gives us Ksp for Ag2S = 1.6 * 10-19Molar mass of Ag2S = 247.9 g/molmolarity of saturated solution of…

Q: Which is the electrophile in the following reaction? H3PO4 I || III IV

A: Electrophilic aromatic substitution reactions are the characteristic feature of benzene and other…

Q: How much of a 2.5M stock solution do you need to make 300mL of a 0.35M solution? How much water…

A: Initial concentration(M1) = 2.5MFinal concentration(M2) = 0.35MFinal volume(V2) = 300 ml

Q: You agree on a $55 payment with your friend to help them move out of their apartment, but after the…

A: Given  money lended = 55$Length = width = height of block = 0.16 inch = aGold rate = $61 per…

Q: Identify the isomeric relationship, if any, between each of the following pairs of compounds. Show…

A: In this question we have given two isomers of same compound and we have to explain the relationship…

Q: Part 1 of 2 Determine the hybridization for the highlighted carbon atom (highlighted in red). O…

A: Steric number = number of lone pair of electrons on the highlighted atom + number of bonds to the…

Q: Determine the Miller indices for the planes A and B shown in the unit cell 4+2 B mir

A:

Q: odine-125 is radioactive and has a half life of 60.25 days. Calculate the activity of a 6.1mg sample…

A: Given Iodine-125Half life = 60.25 daysMass of sample = 6.1 mg = 6.1 * 10-3 gActivity of sample =…

Q: extraction and crystallization techniques to separate a solid mixture of organic compounds

A: Lab procedure – The laboratory procedure involves isolating, purifying, and identifying Group 1 and…

Q: (1) Ni(NO3)₂ (aq) + NaOH(aq) → (2) Cu(NO3)₂ (aq) + NaOH(aq) → (3) AgNOB (aq) + KI (aq) →

A: Answer:When solutions of two different compounds are mixed and precipitate formation takes place…

Q: Draw the structure of [C6H5SO3]] Include all lone pairs and charges as appropriate.

A: C6H5 means benzene ring and -SO3- is sulfonate ion. In sulfonate ion, two O atom bonded with S by…

Q: a student sets up the following equations to convert a measurement (.030 Pa*cm^3) * _ = ? kPa* m^3

A: Answer:This question is based on conversion of units where we have to convert given physical…

Q: (a) Give the molecular formula for each of the following. NEC (b) Br OH (c) O

A:

Q: Repeat analyses of the Zn content of an ore leachate by atomic absorption spectrophotometry yielded…

A:

Q: 2) <3 < CHI#SN B

A: The structure in the above is pyrrole, a class of organic compound of the heterocyclic series…

Q: A graduated cylinder is filled to 10.10mL with water. A small piece of granite is placed into the…

A: In this question we need to find the volume of granite when the granite is placed into the cylinder…

Q: 1. Draw Lewis structures for each of the following molecules, showing all covalent bonds, formal…

A: Lewis’s bonding theory is based on the octet rule. The Lewis structure is a simplified…

Q: A puzzle cube has a volume of 203 mL. What is the volume of the cube in in ?

A:

Q: Which of the following is the best set of synthons? A. B. e.. :OCH3 0: :OCH3 synthons synthons

A: Two most important factors for deciding the best synthons are- 1- The stability of the positive and…

Q: What is the Maximum Buffering Capacity for each buffer located in the picture. Maximum buffer is…

A: To determine the maximum buffering capacity for each buffer given in the image below:

Q: НО. OH ОН

A: Ylides are reagents containing negative charge on carbon and adjacent positive charge on heteroatom…

Q: 2 N₂05(9)→ 4 NO₂(g) + O₂(g) sider the decomposition of dinitrogen pentoxide shown above. In order to…

A: The decomposition of dinitrogen pentoxide is The average rate of a chemical reaction is determined…

Q: Which of the following is a correct IUPAC name? Group of answer choices 3-ethylpentane None, they…

A: Check the structure for all compounds and check whether it is correct or not.

Q: Find modeling (if any, there should be) for steel production via Hydrogen Direct Reduced Iron (DRI)…

A: Hydrogen-based DRI method was introduced as a greener approach to steel production. Earlier the…

Q: Select the tertiary carbon: Br

A: To find out the tertiary carbon in the given molecule.

Q: Do the molecules below have a permanent electric dipole moment? a) H-S-H b) c) H-Sn-H H

A:

Q: Which of the following is the best Lewis diagram for CH₂O?

A: Lewis’s bonding theory is based on the octet rule. The Lewis structure is a simplified…

Q: The following is an example of a graph prepared by a student in the Fall 2021 semester. It mostly…

A: A question based on tools in analytical chemistry.. A couple of issues in the given graph can be…

Q: (CH3)3Al lewis structure including tridimensional structure with respect to the central atoms

A: While draw the Lewis structure, keep the following points:First, calculate the total number of…

Q: For EACH of the following sets of quantum numbers in parts (i) to (iii), indicate the maximum number…

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Q: find an expression for the concentration of the intermediate species PdL?

A: we are going to use STEADY STATE APPROXIMATION to slove this question.

Q: 23) Which of the following is not an electrophile? A) H+ B) BF3 C) +NO2 D) Fe+3 E) CH2=CH2

A:

Q: 1. Consider the thermal decomposition of gaseous N₂Os to NO2 and O₂ via the following equation:…

A:

Q: What are ALL the types of  intermolecular bonding does n-pentane have? What are ALL the types of…

A: Intermolecular forces are the forces of attraction between molecules. These forces are…

Q: The concentration of hydrogen in the palladium depends on the pressure of H₂ gas applied, but in a…

A: Mass of hydrogen gas (H₂): 0.94 gMass of palladium metal: 215 gSolution density: 10.8 g/ cm3Find…

Q: A muffin recipe calls for 34 cup of sugar for every 12 teaspoon of salt. How much salt should be…

A: In this question we need to calculate the amount of salt needed for 1 cup of sugar

Q: intensity (%) 100 80 60 40 Mass spectrum

A: Given a mass spectrum Correlate the spectrum with molecule

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.