Sodium chloride is often used to prevent icy roads and to freeze ice cream. What are the boiling point and freezing points of 0,034 m aqueous solution of sodium chloride? Kb =0.512 °C/m; K= !! 1.86 °C/m.

Q: 2 N2(g) + O2(g) 2 N2O(g) G° = 203.1 kJ and S° = -148.5 J/K at 262 K and 1 atm. This reaction is…

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Q: Given the reaction: Fe*2 + Cr207 -2 - Fe*3 + Cr*3 Which is the reducing agent? Cr*3 -2 Cr207 Fe*2…

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Q: a. If 15.0 ml of H.SO.are required to neutralize 25.0 ml of 0.660 N KOH solutton, to what volume…

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Q: Using a table of standard electrode potentials, decide which of the following statements is…

A: Standard electrod potential is measure of reducing power of any compounds.

Q: How many grams of copper will be plated out by a current of 2.3 A applied for 25 minutes to a 0.50-M…

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Q: Given the reaction:    Fe+2 + Cr2O7 -2  → Fe+3 + Cr+3  How many mole/s of Fe+2 is/are used…

A: 6 moles of Fe2+ are used in balancing the reaction, and henc

Q: An essential amino acid is one that Multiple Choice must be included Iin the diet. the body can…

A: Given, which is true about essential amino acid.

Q: Multiple Choice never occur in nature. produce structurally weak materials. contain no peptide…

A: In beta pleated sheets there is the proper organized manner thus making it inelastic  Whereas beta…

Q: DIFFERENCES of Four Quantum Numbers THE SPIN THE PRINCIPAL THE AZIMUTHAL THE MAGNETIC PROJECTION

A: The Principal The Azimuthal The magnetic The spin projection This quantum number determines the…

Q: Under which of the following situations does the equilibrium constant of a reaction, K, change? O K…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Which of the following Lewis dot structures is a valid Lewis structure? :F: F: H H H-P-H H. None of…

A: A. PH3 has valid Lewis dot structure.  There are eight electrons around the central P atom (2*3 = 6…

Q: A sample of KHP. KHCaH.Os, weighing 2.035 g is titrated with NaOH and backtitrated with HCI. NaOH…

A: Given: Mass of sample of KHP =2.035 g Volume of NaOH required =23.20 mL Volume of HCl required…

Q: Question 2 The reaction: Na + Feso4 - Nazso4 + Fe is REDOX reaction? O True False

A: Redox reaction is a reaction in which the oxidation number of the atoms are changed.

Q: When [Hg2+] = 1.32 M, the observed cell potential at 298 K for an electrochemical cell with the…

A: Given: Cell potential = 1.675 V Temperature = 298 K  [Hg2+] = 1.32 M Known: EHg2+|Hgo=0.85…

Q: 20.77. The nitration of methanol, CH;OH, by nitrous acid is thought to proceed via the following…

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Q: Use the van der Waals equation of state to calculate the pressure of 3.20 mol of CH, at 479 K in a…

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Q: Draw a dipeptide that contains two different amino acids where the predominant form is positively…

A: Here we are required to draw the predominant structure of dipeptide at pH=5 and the charge it bear…

Q: Question 8 Given the reaction: Fe*2- Cr207-2 - Fe*3+ Cr*3 How many mole/s of H20 molecules is/lare…

A: In this question we have to balanced the reaction and then find out the moles of H2O molecule are…

Q: The half-life for the alpha decay of 226Ra to form 222Rn is 1.60×10 y. Suppose the energy of the…

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Q: Why is this true? When water is added a solid forms: Ag(H2O)2^1+ +Cl^1- —>solid

A: It form AgCl solid

Q: Using the table of the weak base below, you have chosen Pyridine as your weak base in the buffer…

A: Given: Buffer solution of weak base pyridine (assuming B) and its conjugate acid HB+. pH of solution…

Q: Questions Use the graph paper that is available to plot the titration curves. Locate the equivalence…

A: Given :-  Initial pH= 3.92 Mass of KHP and Paper = 0.868g Mass of paper= 0.357g Mass of KHP=…

Q: How much Ba(OH)2 in mg per mL solution is contained in 0.400 M Ba(OH)2 (FW 171.34 g/mol)

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Q: What concentration of Cl results when 899 mL of 0.683 M LiCl is mixed with 727 mL of 0.671 M MgCl, ?…

A: In this question we have to tell concentration of Cl- ions in the resulting solution.

Q: 2. The more sphere-like the molecule, the lower the surface area and become more compact, leads…

A: 2) when the surface area decreases the molecule becomes more compact . It is very difficult to break…

Q: If an orbital has an orbital angular momentum (Azimuthal) quantum number of four (4), what are the…

A: Given :- value of orbital angular momentum (Azimuthal) quantum number = 4  To determine : possible…

Q: Question 15 The equivalence point of a titration of 350.0 mL of 0.00016 M weak acid with 0.00082 M…

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Q: The cell potential for this reaction is V when the concentration of [Cu2*] = 1.0 x 105 M and [Zn2*]=…

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Q: Below is one of the two resonance forms for the acetate ion. What is true about the bond rotations…

A: Lewis structure of a molecule can be defined as the arrangement of valence shell electrons in all…

Q: M5

A: According to the question, we need to determine the change in the volume of vapor with temperature…

Q: Consider an electron confined to a 2-D ring of radius 0.5748 Å. What wavelength of light is absorbed…

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Q: 3. Draw the structure of the following glycosides (chair, where applicable). a. Sucrose b. B-lactose…

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Q: 50.0 g H2O at an unknown temperature is mixed with 27.0 g of water at 15.8°C in a coffee-cup…

A: Given data :

Q: Which of the following statements about the electrolysis of aqueous NaCl is false? a. Molten sodium…

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Q: Using the redox tower above, rank the following equations fror produced to least energy produced…

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Q: c) 1) mCPBA 2) H*, CH3OH

A: In this question we have to tell the product of the reaction.

Q: Which of the structures below corresponds to the dipeptide cysteylananine? The parentamino acids are…

A: We have to predict the dipeptide structure.

Q: 10. Dichloroethane, a compound that is often used for dry cleaning, contains carbon, hydrogen, and…

A: Given,  The sample shows 24.3% of carbon and 4.1% of hydrogen. The molar mass of the sample is 99…

Q: The equilibrium constant, K, for the folowing reaction is 1.20x1o2 at 500 K PCI,(9) PCIy(0)+ Clzla)…

A: Equilibrium constant K = 1.20 * 10-2

Q: A sample of fuming suifuric acid containing only SO. and sulfuric acid weighs 1.400 grams and…

A: Given: Mass of mixture = 1.400 g. Concentration of NaOH = 0.850 N = 0.850 M…

Q: The light emitted from one of the following electronics transitions (n=4->n=2 or n=3 ->n=2)in the…

A: The answer is attached

Q: What is the numerical value for the standard cell potential for the following reaction?      2Cr…

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Q: For the aqueous Cd(CN), complex K, = 6.03 x 10° at 25 °C. Suppose equal volumes of 0.0040M Cd(NO,)…

A: Given: Concentration of Cd(NO3)2 = 0.0040 M Concentration of NaCN = 0.80 M And equal volume of both…

Q: Select all of the following that are true:   Select 2 correct answer(s) Question 27 options:…

A: We are to analyse the given statements and chose the correct ones.

Q: The compound known as butylated hydroxytoluene, abbreviated as BHT, contains carbon, hydrogen, and…

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Q: A sample consisting of 2.0 mol CO2 occupies a fixed volume of 15.0 dm3 at 300 K. When it is supplied…

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Q: 19- A sample of limestone is titrated for its value as a neutralizing agent. A sample weighing 1.000…

A: Limestone is CaCO3 Moles of CaCO3 = 1 / 100 = 0.01

Q: Co3 CH3 CH3OH H3 C +H2 CI PdIC CH3

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Q: CH3OH CH;CH=CHCH,Br

A: ->CH3OH is polar protic hence , there occur nucleophilic substitution reaction through formation…

Q: %3D HO

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.