0.2 molal aqueous solution of an electrolyte A,B is 90% ionised. The boiling point of the solution at 1 atm is : (K, for H,O = 0.52K Kg %3D mol & boiling point of H,O = 373 K) (1) 273.19 K (2) 374.92 K (3) 376.4 K (4) 373.38 K
Q: 2. Draw the product/s especially the structure of the alkane produced in each of the following react...
A:
Q: What are emulsions? Discuss the role played by an emulsifier in the process of emulsification. O Wha...
A: 5.(a) Emulsion is a type of colloid formed by mixing of two liquids which are nearly immiscible. Th...
Q: Complete the table below. Round each of your entries to 2 significant digits. You may assume the tem...
A: Conjugate acid contain one more hydrogen atom and one more positive charge than the base that formed...
Q: classify each of the following compound as either Ionic,Molecular, binary acid, oxyacid Please answ...
A: Since you have posted a question with multiple sub-parts, as per our company guidelines we are suppo...
Q: Which of the following statements is false? * The percent yield = x 100% The limiting reactant is co...
A: In a chemical reaction, the limiting reactant is the reactant that gets consumed first and the other...
Q: Element X has two isotopes, 28Q and 30Q. The relative atomic mass of X is 28.24. (a) Define the ter...
A:
Q: Following the irrigation of salted soils, 10,000 L of salty irrigation runoff was filtered by a reve...
A: Osmosis is a phenomenon that occurs when there are two regions of different concentrations of soluti...
Q: CH3 CH3 H3C
A: Soln
Q: freezing-point depression
A:
Q: Solutions were prepared to contain 100 grams of each of the following compounds in 1000g of H2O. Whi...
A: Colligative properties: The colligative properties are those properties of solutions that depend on ...
Q: A 20.0-g sample of methyl alcohol (CH3OH, molar mass = 32.04 g/mol) was dissolved in 31.5 g of water...
A:
Q: Direction: Identify the property of water shown in the pictures below. Write the letter of your answ...
A: A question based on the properties of liquids that is to be accomplished.
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: 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....
Q: Which of the following statements best describes the entropy of water that freezes in a beaker? a. A...
A: The correct option is:
Q: 1. 5 moles of an ideal gas expands from 3L to 8L at a constant temperature of 300K. (a) What is the ...
A: Since you asked multiple questions so as per Q&A guidelines of portal I solved first question , ...
Q: Write the procedure and necessary calculations for the preparation of 250 mL of 100 PPB of Cadmium f...
A: Given: Volume of solution = 250 mL. And concentration of cadmium ion = 100 ppb.
Q: Options for 1)higher or lower Options for 2)higher or lower Options for 3)weaker or stronger
A: The answer is as follows:
Q: The melting points of NaCl, KCl, and RbCl are 801∘C, 770∘C, and 718∘C, respectively. Based on this,...
A: Compound Melting point(0C) NaCl 801 KCl 770 RbCl 718
Q: The work function of Au is 5.1 V. For an uncharged Au electrode, what is the electrochemical potenti...
A: Work function of Au = 5.1V We have been given an uncharged electrode. We have been asked to compare ...
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: (a) A supplement tablet containing about 300.00 mg of calcium ion was dissolved, filtered, and dilut...
A: [EDTA] = 0.0100 M Volume of titration volume of EDTA =...
Q: (0.43 M) as the anode and the half-cell Sn2+(x M) | Sn(s) as the cathode; the measured cell voltage ...
A:
Q: 20 40 60 80 100 120 Temperature (°C) University of VWisconsin, https://wisc.pb.unizin.org/minimisgen...
A: Vapor pressure is the pressure exerted by a vapor in equilibrium with the solid or the liquid phase ...
Q: What are the best starting material and reagents needed to make N-methylpropanamide a. propanol and ...
A: To explain: The best set of reagents for producing N-methylpropanamide.
Q: Which has the highest pKa? O a carboxylic acid (RCOOH) O a hydrocarbon (ie, an alkane) a mineral aci...
A:
Q: 1a. Determine the volume of 1.000 g of water (Densitywater= 0.9999 g/mL). %3D 1b. Determine the volu...
A:
Q: a) Propose a synthesis route to prepare the following product from the given starting material. Note...
A: The major intermediates and their corresponding reactions by which these are formed are mentioned be...
Q: a. Give the expected hybridization of the central atom of CiO4-. b. Give the expected hybridization ...
A: Given, Hybridization of the central atom of ClO4- = ? Hybridization of the central atom of PO43- = ?...
Q: Match the following terms to their definitions: Aqueous solution, cation, centrifuge, decant, flame ...
A: Given A solution of one (or more) substances dissolved in water is called .... ?
Q: a. Methylcyclopentane b. 3-Bromocyclopentene c. Cyclopentylcyclopentane d. 1,3-Cyclopentadiene
A:
Q: 9. Gas is one of the fundamental states of matter. Which statement best explains the fact that gases...
A: There are three phases of matter. The phase of matter can be interchanged by changing the temperatur...
Q: Write the Mass Balance Equation, Proton-Balance Equation and Charge Balance Equation for the followi...
A: Charge Balance Equation (CBE): It is based on electroneutrality principle. The molar concentration o...
Q: MULTIPLE CHOICE Which of the following terms explains the release of enormous energy when a nuclear ...
A: Nuclear fission: In a nuclear fission reaction, the nucleus of an atom splits into two or more small...
Q: Report Pages DATA Trial A Trial B Trial C Mass of test tube and boiling chip LT0T 18.441 18.544 Mass...
A: The given problem is some lab data.According to this data,the problem is solved in the image.
Q: When 1.00 L of 1.05 M Ba(NO3)2 solution is mixed with 1.00 L of 1.10 M NazSO4 solution at 25.0°C in ...
A: Given: Concentration of Ba(NO3)2 = 1.05 M Volume of Ba(NO3)2 solution = 1.00 L Concentration of Na2S...
Q: 5. The boiling points of the halogens increase in the order F2< Cl,< Br,< l2 due to the resulting in...
A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...
Q: What is paper chromatography please include the importance of using it
A: Introduction : Chromatography can be defined as a technique for separating different component of s...
Q: GIVE 5 EXAMPLES CHEMICAL CHANGE AND PHYSICAL CHANGE
A: In chemical change new product are formed whereas in physical changes new product are not formed
Q: (a) What is activation energy? What role does activation energy play in chemical kinetics? (b) What ...
A: there are certain criteria for any chemical reaction to occur and activation energy is one of them h...
Q: An unknown salt is either KBr, NH4Cl, KCN, or KHSO4. If a 0.100M solution of the salt is basic, what...
A: NH4Cl is salt of strong acid (HCl) and weak base (NH3). KCN is salt of strong base (KOH) and weak ac...
Q: (a) What is salt-bridge? Why is it used? Explain its working principle giving an example. (b) Define...
A: A salt bridge is a laboratory device used to complete circuitry of electrochemical cell by providing...
Q: Find the IUPAC name and common name a. C5H10O b. CH2O2
A: In organic chemistry IUPAC name is the standardize name of organic compounds using some rules. And c...
Q: 6. Draw the Lewis structures of F2, O2, and N2. What is the difference in terms of their bonds?
A: Lewis’s structure: Lewis’s bonding theory is based on the octet rule. The Lewis structure is a simpl...
Q: Reduction of aldehydes forms: A. Primary Alcohol B. Secondary Alcohol C. Tertiary Alcohol D. NOTA ...
A:
Q: 1,3,3-trichloro-2-methyl- pentane 4-bromo-1-tert-butyl- cyclohexane
A:
Q: The unknown solution in test tube #1 plus (NH4)2SO4 gives no reaction. The solution in test tube #1...
A: A white precipitate is formed when Na2HPO4 and NaOH is treated with solution in test tube #3, it ind...
Q: A reaction vessel is charged with 0.50 atm of A and 0.840 atm of B. Once the reaction reaches equili...
A: A(g) <===>2 B(g) Initial pressure of A = 0.50 atm Initial pressure of B = 0.840 atm Kp = 67.2
Q: What is the rate order with respect to [B] in the reaction A +B → C which has following rate equatio...
A:
Q: NH2 НО -F H,N
A:
Step by step
Solved in 2 steps
- One mole of a component A and twomoles of a component B are mixed at270C to form an ideal binary solution. calculate the Vmix , Gmix Hmix and Smix. Assume that R=8.314 JK1mol-1 ?A water carbonating plant is available for use in the home and operates by providingcarbon dioxide at 5.0 atm. Estimate the molarity of the soda water it produces. Hint:Henry’s Law can also be expressed as PB = mBKB where PB is the partial pressure ofsubstance B, mB is the molality of the solution, and KB would be the Henry’s Lawconstant of B. Using this expression, the Henry’s Law constant for CO2 is 3010kPa*kg/mol. You may assume that the density of water is approximately 1.0 g/mL. A) 0.17 MB) 0.017 MC) 0.067 MD) 0.0017 ME) Cannot be determinedCompounds A and B form a liquid solution in all proportions, but do not form solid solutions. The phase diagram of this system is shown in the accompanying photo. 4.65 moles of A and 1.55 moles of B are mixed to form a liquid solution at 75(C. The mixture is then cooled to 35oC. a.) Determine the mole fraction of B in the liquid phase at 35oC. b.) Compute the number of moles of solid A in equilibrium with the liquid solution at 35oC.
- A dissolution is prepared dissolving 396 g of sacarose (C12H22O11) in 624 g of water. What is the vapor presurre at 30ºC? The vapor presurre of water at 30ºC is 31.8 torr and sacarose is a non-volatile solute.A 1.00-m solution of acetic acid, CH3COOH, in benzene has a freezing point of 2.96°C. Use the data in the Table to calculate the value of i and suggest an explanation for the unusual result. (Hint: If i is less than 1.0, each formula unit that dissolves yields less than one solute particle, an outcome suggesting aggregation of solute particles.) Answer is: i = 0.50; formation of dimers of composition (CH3COOH)2, need steps shown to understand thoughThe enthalpy of fusion of solute B is 4,384.28 kJ/mol and its melting point is 870.49oC. Calculate its ideal solubility (nB) in 8.53 moles of solvent at 143.49oC.
- Why is it that the ionic activity is equal to the molality (mol/kg) in DHLL (Debye-Hückel Limiting Law)?Maple water is concentrated using the reverse osmosis process. What pressure (in kPa) must be imposed to obtain maple water with a mass percentage of 21.10%m/m and a density of 1.088 g/mL?The temperature is then 24.35 °C Note: sucrose is not an electrolyte and it is assumed that maple water consists only of sucrose and water. The molar mass of sucrose is 342.30 g/mol. Note: The density of pure water is 1.000 g/mL.R = 8.3145 kPa-L-mol-1-K-10 K = -273.15 °CIn a laboratory experiment, students synthesized a new compound and found that when 11.40 grams of the compound were dissolved to make 160.5 mL of a ethanol solution, the osmotic pressure generated was 6.03 atm at 298 K. The compound was also found to be nonvolatile and a non-electrolyte. What is the molecular weight they determined for this compound?
- Table 2. Gibbs Free Energies of formation (kJ), ∆G°f, for Ions in 1M Solution and Ionic Solids Cations Cl--131.228 I--51.57 NO3--108.74 SO4-2-744.53 Ca2+-553.58 -748.1 -528.9 -743.07 -1797.28 W2 ∆G°f of water = -237.129 kJ/mol Calculated values of ∆G°rxn and the ∆Grxn of each box, Predicted results (ppt or no ppt).Observations (Rxn or No Rxn). S or support and R for Refute Cations Cl- I- NO3- SO4-2 Ca+2 help) The osmotic pressure at 300 K of a 0.8 molal aqueous solution of MX2 (MW=150 g/mole) is 32 atm. If the density of this solution is 1.30 g/ml then... Is the species an electrolyte? If so what percent of MX2 dissociates? What is the change in freezing point if kf=1.86 °C/m?If an aqueous solution of a non-volatile, non-electrolyte freezes at -1.28oC, what is its boiling point temperature? Please provide detailed solution. Thanks