QUESTION 21 The vapor pressure of pure water is 31.942 torr at 30.00°C. At the same temperature, the vapor pressure above a solution made by dissolving glucose in water is 31.008 mmHg. Calculate the normal freezing point in "C of this solution. Ky of water is 1.86 "C-kg/mol. Molar mass of water is 18.0153 g/mol. Note: Report both numerical value and unit. Pay attention to significant figures.

Q: What is Keq at 298 K for the spontaneous reaction between the following? Pb+2 (aq) + 2e-------> Pb…

A: Pb+2 (aq) + 2e-------> Pb (s) E° = -0.13 VMn+2 (aq) + 2e-------> Mn (s) E° = -1.18 V The…

Q: 33. What reagents in the order written below would accomplish the following transformation? CI A) 1)…

A: 33. We have to answer the following questions. Introduction: SN2 reaction, keto-enol tautomerism.…

Q: What is the pH of a saturated solution of Mn(OH)2?  For Mn(OH)2, Ksp = 1.95 X 10 -6.

A:

Q: 7. Determine the pH of a buffer solution made using 300.00mL of 0.550M HAC and 150.00mL of 0.300M…

A:

Q: How do you find H3O+ from molarity, pH or pOH/OH-?

A: pH = - log [H3O+] pOH = - log [OH-] pH + pOH  = 14   [H3O+]  = 10-pH  [OH-] = 10-pOH    [H3O+] [OH-]…

Q: Which of the [Select all that apply] HCI (aq) O H₂O NaCl compounds below are electrolytes? O CO₂

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

Q: For sodium bicarbonate (baking) explain the hazards effects of being exposed to this chemical either…

A: The hazards effects of being exposed to the  sodium bicarbonate (baking) are listed below ->…

Q: What are the reagents and conditions needed to produce the product in the reaction? H3C H2O, NaOH…

A:

Q: What reagents are necessary to carry out the conversion shown? a-α

A: Q.1 Solution- In the first step, BH3 in presence of H2O2 and NaOH reduced the double bond present in…

Q: Chlorophyll has the chemical formula C55H72MgN4O5. Determine the molar mass of chlorophyll

A: Molecular Formula of Chlorophyll = C55H72MgN4O5

Q: What is the product of this reaction? CH3 H3C-C=CH₂ CH3 H3C-C-OCH3 CH3 CH3 H3C-C-OCH3 OCH3 OCH3…

A:

Q: Given the following atoms: AN Answer the following: Largest radius [Select] Lowest first ionization…

A: (A)Nitrogen represents by  N . (B) Neon represent by Ne. (C) Flourine represented by F (D) Lithium…

Q: Titration of 0.2834 g of an unknown monoprotic acid dissolved in 25.00 mL of water requires 29.83 mL…

A:

Q: Which ion exchange chromatography would you choose to retain at pH 7.0 a protein containing many…

A: Explanation: A). Ion exchange chromatography (IEX), which separates molecules according to their net…

Q: ____ are added to protect condensate lines. a) amines b) phosphates c) sodium sulfate d) zeolites

A: Please find your solution below : Condensate lines are the lines mainly made of polyvinyl chloride…

Q: OPTION 2: Br HO ap OH +enantiomer

A: In this reaction, we will give a reaction sequence from reactant to final product.  First you need…

Q: Use the References to access important values if needed for this question. n automobile engine…

A: First law of of thermodynamics : The change in internal energy is the heat added in the system minus…

Q: Which one of the following combinations cannot function as a buffer solution? a) HNO3  and  NaNO3…

A:

Q: Which is the correct Geometry and Hybridization of XeF4? (a) Octahedral, sp3d2 (b) Square planar,…

A:

Q: The complex ion Fe(CN)6³ is paramagnetic with one unpaired electron. The complex ion Fe(SCN)6³ has…

A: Given that, the complex ion Fe(CN)63- is paramagnetic with one unpaired electron. And the complex…

Q: A solution contains 1.42×10-2 M aluminum acetate and 7.14x10-3 M lead nitrate. Solid sodium…

A: Given, The concentration of the aluminum acetate = 1.42×10-2 M The concentration of the lead nitrate…

Q: Part A: Multiple Choice Identify the letter of the choice that best completes the statement or…

A: 1). Tin is in +4 oxidation state, therefore Total 50 protons, (120-50 = 70) neutrons,  46electrons .…

Q: What is the oxidation number of chromium in the ionic compound ammonium dichromate, (NH4)2Cr₂O7? a.…

A: 1.Oxidation number is the number of electron lost or gained by element to form chemical bond. 2. It…

Q: Which of the reactions below should be used to carry out the following alpha lkylation? A. B. of 1.…

A:

Q: A 35 mL sample of 0.20 M KOH is titrated with 0.25 M strong acid (HX).  What is the pH of the…

A: Given that, 35 mL of 0.20 M of KOH solution is titrated with 0.25 M strong acids (HX).  We have to…

Q: 2. Use your model kit to build and upload a photo of the following molecules and answer the…

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

Q: A student ran the following reaction in the laboratory at 337 K: 2NO(g) + Br2 (g) = 2NOBr(g) When…

A:

Q: B. H₂C C. The name of compound B is: H₂ Br H₂C-CH₂ The name of compound C is: CH₂ 2-ethyl-1-pentane…

A: The longest possible continuous carbon chain was selected as parent carbon chain and the…

Q: of citrate synthase from pig heart tissue shows a sigmoidal dependenc *In the presence of saturating…

A: In presence of succinyl Coenzyme A, the sigmoidal curve shifted to the right and becomes even more…

Q: What is the IUPAC name for the compound shown here? CH3 CH₂ | CH3-CH₂-O-CH-CH3 Enter the IUPAC name…

A:

Q: At a given temperature, pressure, and volume, for which of the following gases would be the gas…

A:

Q: HI (aq) + NaOH(aq) Ca (s) + Br₂ (1) eaction. 1 1 CH,(CH,),CH,(g) + 80,(g) – 5CO,(g) + 6H,O(g)…

A: -> When two or more than two species combine to form single species that is Combination equation.…

Q: Question 8 of 20 View Policies Current Attempt in Progress eTextbook and Media Mo M (b) 2.75 mole…

A: Using the concept of molarity as number of moles of solute per liter of solution, molarity of the…

Q: Balance the following equation [?] Cu + [?] HNO3 → [?] Cu(NO3)2 + [?] NO2 + [?] H₂O Note: Input the…

A: The unbalanced chemical equation given is  Cu + HNO3 → Cu(NO3)2 + NO2 + H2O

Q: A solution contains 1.03×10-2 M lead nitrate and 1.06x10-2 M aluminum acetate. Solid ammonium…

A: When Ksp ( solubility product) is less than ionic product of the ions fromed from that particular…

Q: The equilibrium constant, Kc, for the following reaction is 1.20x10-² at 500 K. PCI5(g) =PC13(g) +…

A: We need to calculate the concentration of reactants and products when 0.266 moles of PCl5 is…

Q: A solution contains 6.69x10-³ M ammonium carbonate and 1.08x10-2 M sodium hydroxide. Solid…

A: When for a particular substance, Ksp > its ionic product, then precipitation starts .

Q: Two solutions, A and B, are labeled "0.14 M CaCl2" and "0.42 M CaCl2", respectively. Both solutions…

A:

Q: DOH(aq). Assume the volume change upon di

A:

Q: What is the pH of a buffer that is 0.398 M HF and 0.133 M LiF? The K, for HF is 3.5 x 10.4. Your…

A: Given-  Concentration of Acid HF=0.398M Concentration of Salt LiF= 0.133M

Q: Draw the structures of all possible isomers for the following complexes. Indicate which isomers e…

A: The chemical formulas of  a) Diamminebromochloroplatinum :  [Pt(NH3)2ClBr] b)…

Q: Write the net ionic equation for the following reaction: 2 Al (s) + 3 H₂SO4 (aq) Al2(SO4)3 (aq) + 3…

A:

Q: 5. (a) (b) The complex ion NiC14² has two unpaired electrons, whereas Ni(CN)4² is diamagnetic.…

A: This question is based on bonding in coordination compounds.

Q: 28) Which hydrogen atom has the smallest bond dissociation energy from the carbon it is bonding to?…

A: Concept based on the stability of the formation of radical or ion after the bond dissociation. More…

Q: True or False: (answer directly) 1. If a solution does not form any precipitate when BaCl2 and AgNO3…

A: Note: Since you have posted multiple questions, we will provide the solutiononly to the first three…

Q: Classify each chemical reaction: reaction 2CH₂OH(1) + 30₂(g) → 2CO₂(g) + 4H₂O(1) CH₂(CH₂)¸CH₂(g) +…

A: Answer: When during a process, breaking of old bonds and formation of new bonds takes place then…

Q: . Name the following molecule. 4 Draw the bond-line representation for…

A: Steps: Find the longest chain (parent chain) Label the carbons parent chain  Find the…

Q: Draw the Lewis structure for the sulfur trioxide (SO3) molecule. Be sure to include all resonance…

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

Q: How do you know whether it is a good acceptor

A:

Q: Bulk platinum cost about $1158 dollars per ounce (28.35 g = 1 ounce) how much would it cost to…

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.