Why is molality, and not molarity, used to express concentration in the equations for freezing point depression and boiling point elevation?

Q: _ 19. P4S3 _ 20. SiCl, _ 21. Hg2(CN)2

A: Soln

Q: Balance the below chemical reaction. Ec1H16 + O2 → → EcO2 + H2O In the correctly balanced equation, ...

A: In balanced reaction number of each atom on reactant side is equal to number of each atom on product...

Q: The equilibrium constant, Ke, for the following reaction is 1.80x104 at 298 K. NH4HS(s) =NH3(g) + H2...

A: Given, NH4HS(s) ⇌ NH3(g) + H2S(g) Temperature (T) = 298 K Equilibrium constant (KC) = 1.80 × 10-4 In...

Q: Indicate what specific electron will have the following quantum number indicated below: 8. 4, 3, +1,...

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Q: ch heat is

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Q: Draw the line structure for the ester

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Q: 1. Name the three classifications of compound microscope. 2. Differentiate magnification and resolut...

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Q: Convert 4.54 moles of Ca to atoms

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Q: State Boyle’s and Charles’ Law

A: Boyle’s and Charles’ Law are the laws for gases.

Q: 4. Determine the structure of the compound with molecular formula CaHsO2 that gives the following 'H...

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Q: Consider a reaction A + B C for which = k[A][B]2. Each of the following boxes represents a reaction ...

A: The given chemical reaction is as follows: A + B → C The stoichiometry of the reaction states that t...

Q: Provide the reagents necessary to transform the given starting material into the desired product. Mo...

A: Given : We have to draw the reagents used to convert given reactant to product.

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: identify each substance Acid Base conjugate acid Conjugate base

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Q: e K,

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Q: A typical vitamin C tablet (containing pure ascorbic acid, H2CgHgOg) weighs 500 mg. One vitamin C ta...

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Q: grams

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Q: Me H a. H NMR

A: For the given Diel' Alder product, there must be a diene and a dinophile moiety which upon reaction ...

Q: what is the expected mass of the products (5-amino-2-chlorophenol and 4-chloro-3-hydrixyacetanilide)...

A:      Amount of 2-chloro-5-nitrophenol added = 2.75 g           Molar mass of 2-chloro-5-nitrophenol ...

Q: 26. Write in the first two boxes on the left an equation using structural formulas for the reaction ...

A: The reaction between C3H8 (propane) and Cl2 (chlorine) is an example of substitution reaction where ...

Q: (S) +3O 2(g) 2Al 2 O 3 (s) How many grams of A*l_{2} * O_{3} can be formed from 93.54 g of Al and 29...

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Q: What is the polarity of the H - C bond?

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Q: Consider the following reaction and its equilibrium constant (AICI3 is a catalyst). AICI, (aq) (cat)...

A: Value of equilibrium constant ,Kc = 3.33 Equilibrium constant value doesn't affected by change in co...

Q: A side reaction in the manufacture of rayon from wood pulp is 3CS2 + 6NAOH → 2NA2CS3 + Na2CO3 + 3H2O...

A: The balanced reaction given is, Given: Moles of NaOH taken = 2.78 mol. Volume of CS2 taken = 92.5 m...

Q: (0.1mol) of NaoH was added to 1L of a solution containing a weak acid and its base salt had the same...

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Q: Calculate Gcv of a coal sample uf

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Q: Which liquid would have the weakest surface tension? a. X b. Y c. Z d. The surface tensionof X,Y, Z ...

A: The data given is,  

Q: Help me find the % deviation : #1: 7.77 #2 : 7.78 #3: 7.74 i know the average is 7.76 ...

A: Not  

Q: Why do meltiing, freezing and boiling point varies and depends on a kind of matter? Not less than 6 ...

A: Matter can be defined as substance that possess definite mass and volume. Matter can be solid, liqui...

Q: theoretical yield

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Q: III. Calculate the percentage composition of each chemical compound. Circle your fina answer. Show y...

A: Given that : We have to calculate the % composition of each chemical compound : 1. SnI4 2. Ca(OH)2

Q: how do I find the electrons present in 5mg of allicin

A: Number of moles of allicin in 5.00 mg  = 3.08 × 10-5 moles 1 mole of allicin contains total electron...

Q: 702.0mc 3. a) How many mLs of 0.600 M calcium chloride are needed to provide 0.110 moles of chloride...

A: 3.a) We have to calculate the amount of 0.600 M of calcium chloride required to produce 0.110 moles ...

Q: What is the molality of a solution of 12 g of sodium chloride dissolved in 101 g of water that exhib...

A: Mass of NaCl = 12 g Mass of water = 101 g Freezing point depression, ∆Tf = 3.4oC Kf water = 1.86 oC/...

Q: A student is determining the density of an unknown metal with a mass of 32.56 g. The student partial...

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Q: 9. oCCH3 CI AICI3

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Q: Propose a multi-step synthetic pathway for the desired target compound starting with the reactant sh...

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Q: A CHEM 245 student attempts the following reaction to synthesize the desired ether below, but he is ...

A: All three reactions are mechanism based . Details mechanistic pathway are given below

Q: 1. The following diagram shows the partial synthesis of an important antihistamine drug currently us...

A: To write the oxidation state of *C in all the three structures.

Q: 1. A chemist determines that rust. What is the percent composition of each element in the In a lab, ...

A: 1. Solution - According to the question - Given values - Iron = 1.26 gram O2 = 0.54 gram Formulas - ...

Q: Find the forward (k Jand reverse (k-1) rate constants for the recombination reaction; OH +H SH,0 at ...

A: Given: K = [H2O][H+] [OH-] = 0.51 ×1016 M-1

Q: e. H,CH,C(CH32CH2CH(F)CH(CH,CH3)CH3 1,3,3-trichloro-2-methyl-pentane 4-bromo-1-tert-butyl-cyclohexan...

A: Soln

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: At a certain temperature, the equilibrium constant K for the following reaction is 0.0039: Br,(g) + ...

A: This is a question from equilibrium.  We are to calculate the value of keq at various distance.

Q: large containers of sulfuric acid solution, 9. А chemist has two with different concentrations of ac...

A: Soln

Q: A quantitative spectrophotometric procedure for iron based on a solid phase extraction using bathoph...

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Q: what ate the structures for the following written out compltetly  cinnamate reacts with methyl cin...

A: Since you have posted with multiple sub-parts, as per guidelines we will solve only three sub-parts ...

Q: The chemical reaction presented below is not balanced. Balance it and calculate AH° and ASSurr for t...

A: The correct answer is given below

Q: Identify each organic compound given below as an acid anhydride, an alcohol, a carboxylic acid, or a...

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Q: In the isomerization of 2-methylcyclopropane to butene, the Arrhenius plot is below, showing the equ...

A: The Arrehenius plot is for the isomerization of 2-methylcyclopropane to butene. The reaction is of t...

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.