2. A on is made by mixing 1.08 g of an unknown non-volatile non-electrolyte with g of benzene. The free 10.00 zing point of pure benzene is 5.5°C. The molal reezin ng point depression constant, K for benzene is 5.12°C/molal. The following data were obtained in a freezing point depression experiment Time, min Temperature C TemperatureC 0.5 0.1 0.8 0.9 0.8 0.7 0.6 0.5 0.4 0.2 -0.5 1.2 Time min 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 23.8 22.1 20.2 18.5 16.6 14.8 12.7 10.8 9.1 7.2 5.5 3.6 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 21.0 22.0 23.0 24.0 25.0 Plot a graph of time/temperature, using the y-axis for temperature and the x-axis for time. Determine the freezing point of the solution. A. 2 De-tereine tHe alality of the solthon
Want to see the full answer?
Check out a sample Q&A here
Related Chemistry Q&A
Find answers to questions asked by students like you.
Q: Question attached
A: Gravimetric analysis: This kind of analysis in chemical science has the application in the…
Q: Q1. Dissolved 0.273 grams of pure sodium oxalate (Na:C.O,) in distilled water and added sulfuric…
A: The question is based on the concept of titrations. We are titrating Sodium oxalate with potassium…
Q: Consider a binary solution for which the vapor pressure (in torr) of one of the components (say…
A: Click to see the answer
Q: Suppose an unknown sample of calcium is to be analysed by gravimetry technique. Which of the…
A: To get pure crystalline precipitate we have to follow crystalline process.
Q: Which one of the following is incorrect: O a To increase the particle size of the precipitate the…
A: Answer
Q: A 10mL solution contains dissolved PbCl2. There are 0.02575 moles Pb2+ and 0.0515 moles Cl-. What…
A: Click to see the answer
Q: The disolufion of unknown subslances in 825 g of berzene, C, of 298 Klowen the heezing point by…
A: The depression in freezing point ∆Tf is given by: ∆Tf=Kf×m······(1) Here, Kf is the freezing point…
Q: How to find final volume? what is the osmolarity and tonicity (hyper,iso,hypo) Tonicity Worksheet…
A: Click to see the answer
Q: List 7 real-life applications in Chemical Equilibrium in a Liquid Phase and list 7 real-life…
A: Click to see the answer
Q: Which of the following sentence is correct: O Reprecipitation usually increases coprecipitated…
A: The correct option among the following is shown below:
Q: If 30.0 mL of water that is 0.0500 M in Q is to be extracted with four 10.0-mL portions of an…
A: If 1.00 ×10-24 then fraction of solute to the organic layer, [A]i/[A]o, is calculated as shown…
Q: If 30.0 mL of water that is 0.0500 M in Q is to be extracted with four 10.0-mL portions of an…
A: The K should be a very large number because the solvent extracts almost all of the solute from water…
Q: A mixture consisting of 15 mole % Phenol in water is to batch distilled at 260 torr, what fraction…
A: Click to see the answer
Q: Q1. Dissolved 0.273 grams of pure sodium oxalate (Na2C0.) In distilled water and added sulfuric acid…
A: The question is based on redox titrations. we have added excess of KMnO4 to the Sodium oxalate. the…
Q: During the formation of the n-butyl bromide, a washing is carried out with the NaHCO3 solution and 2…
A: Applying concept of layer separation by funnel.
Q: Average activity coefficient for HBr is 0.930 for three different diluted solutions at 250C. (at m =…
A: Debye-Huckle equation is; log (γi)=-0.51z+z-μ1+Bμ Here γi is activity coefficient, zi charge of ion…
Q: J What is the freezing point of a solution which 13.7% by mass Ca(NO3)2 in water. The density of the…
A: Recall the following expression to calculate freezing point of the solution depression/lowering of…
Q: . After the reflux period, what substances are pre n Whu will the density of the organic phase be…
A: In organic chemistry, Reactants are mixed in a solvent media, and products are obtained. The final…
Q: According to DHLL, the mean activity coefficient of MeX3 salt in 0.29 mol/L of NaCl is: O a. 0.052 O…
A: Question 1. Given, Concentration of NaCl = 0.29 mol/L Salt Type = M2X3
Q: How can I calculate the activity coefficient and the resulting activities of a mixture of 0.001M…
A: Given: Concentration of NaCl = 0.001M Concentration of NaNO2 = 0.05M
Q: Ametal sak vih he femal MCI, aystalies fom water to fom a soid with fhe compotion MCl, - GiH,0 The…
A: The reaction is – MCl2.6H2O s ⇔MCl2s +6H2Og
Q: a) You are provided with a stock solution of U.IM I dilution with water to make (50mL of 0.01M…
A: Molarity of any solution is calculated by dividing the number of moles of solute by the volume of…
Q: The average activity coefficient for HBr at 25oC for three different diluted solutions is 0.930 (at…
A: The solution is provided in the image below.
Q: Calculate the mole fractions of SO2•H2O, HSO3- and SO3 2- in solution at a pH of 3.0, characteristic…
A: Given: pH of 3.0 Total concentration of S(IV) in solution for 20 ppb SO2 in the gas phase.
Q: Calculate the mass of naphthalene required to give a freezing point depression of 2.9°C when…
A: Molality of the solution is obtained from the equation for freezing point depression. Cryoscopic…
Q: Use the Debye-Hückel equation to calculate the activity coefficient of each ion at the given ionic…
A: Given: Ionic strength of Zn2+ = 0.0552 M Ion size,α of Zn2+ = 0.600 nm Ionic strength of Ce4+ =…
Q: (1) Examine the effect of changing the value of molality on the mean activity coefficients1 γ±…
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: A CHM 126 student followed a modified procedure similar to the one described in the "Determination…
A: Given Mass of the solvent, freezing point of pure solvent and solution, freezing point depression…
Q: General Chemistry II Laboratory Manual, 2019 Revision 135 Determination of Some Thermodynamic Data…
A: The temperature in kelvin is calculated as shown below.
Q: Hi, My question was not completed at first, let me rephrase my question. The experiment in the lab…
A: Freezing point is the tempearture at which liquid converts into its solid phase. In solid phase the…
Q: Calculate the FECO3 molar solubility in a Fe(NO3)2 desolution whose ionic strength (u) is 0.05M. The…
A: Molar solubility is defined as the number of moles of solute that can be dissolved per liter of the…
Q: Calculate the FeCO3 molar solubility in a Fe(NO3)2 desolution whose ionic strength (u) is 0.05M. The…
A: Molar solubility is defined as the number of moles of solute that can be dissolved per litre of the…
Q: If 30.0 mL of water that is 0.0500 M in Q is to be extracted with four 10.0 mL portions of an…
A: The final aqueous concentration in solvent extraction method is as shown below: Here, Initial and…
Q: Exposing a 100.0 mL sample of water at 0 °C to an atmosphere containing a gaseous solute at 20.26…
A: Henry's law is given by: C = kPC is the concentration of soluteP is the partial pressurek is the…
Q: Tube 1 and Tube 2: at 20C and 4 mL(0,1M NaOH) and 10 mL Benzoic acid,solution concentration .…
A: Given data: Volume of NaOH = 4 mL Volume of benzoic acid = 10 mL Temperature = 20C Density = 1g/mL
Q: Dissolved 0.273 grams of pure sodium oxalate (Na2C204) in distilled water and added sulfuric acid…
A: Click to see the answer
Q: The Ksp of Cu3 (PO,), is 1.00 x 10-37. Estimate the solubility of this salt in units of g. L-1. You…
A: Click to see the answer
Q: 1. A process where impurity is precipitated along with the desired product. 2. Calculate the…
A: Gravimetric analysis is the process in which impurity is also precipitated along with the desired…
Q: A solution of common salt in water is prepared by adding 50kg of salt to 200kg of water to make a…
A: we can express concentration of solute as Weight(w/w)fraction
Q: A solution of common salt in water is prepared by adding 50kg of salt to 200kg of water to make a…
A: Weight fraction of a component is defined as the amount of component (salt) present in solution.
Q: ETERMINATION of HEAT of SOLUTION by SOLUBILITY METHOD perimental data are given as follows, related…
A: Click to see the answer
Q: Pure toluene (C7H8) has a normal boiling point of 111.0°C, and the Boiling Point Elevation Constant…
A: The activity coefficient of the compound A is approximately 1.3
Q: Now suppose, instead, that 15.785 g of a volatile solute is dissolved in 325.0 g of water.This…
A: Raoult's law for volatile solute states that in a solution, the vapour pressure of a component at a…
Q: Calculate the solubility of FeCO3 (in mol/L) in the following. Assume the Ksp of FeCO3 = 3.5 x 10-1.…
A: Click to see the answer
Q: What are the applications of re-crystallization in gravimetric analysis? answer at your own words…
A: Recrystallization is a purification technique to separate crystalline product from unwanted…
Q: Estimate the mean ionic activity coefficient and activity of a solution containing CaCl2(aq) nd…
A: Mean activity coefficient is defined as the average activity coefficient when electrolyte dissociate…
Q: We have used Raoult's law to obtain the expression for the freezing point shift of a solution: RT;…
A: Click to see the answer
Q: Write there too that the activity coefficient, γi, just equals the fugacity coefficient, and the…
A: The activity coefficient defines the ratio of the chemical activity to its molar concentration. The…
Q: (a) In reference to Freundlich adsorption isotherm write the expression for adsorption of gases on…
A: The Freundlich equation or Freundlich adsorption isotherm, an adsorption isotherm, is an empirical…
Q: (a) In reference to Freundlich adsorption isotherm write the expression for adsorption of gases on…
A: Click to see the answer
