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In detail describe dry chemical systems.
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- 7.5. For this chemical equilibrium in an enclosed system, how many degrees of freedom are there?Part C A solution is formed when the solute unilormly disperses throughout (or dissolves in) the solvent The process can be described though three stops A hypothetical solution forms between a solid and a liquid The vakues of the thermodynamic Involved in the process are shown in the following table 1 separation of solvent-solvant particles, 2. breaking of solute-solute particles and 3. formation of solute-solvent interactions Action Enthalpy 145 kJ/mol 21.8 kJ/mol séparation of solute separation of solvent formation of solute-solvent interactions -85.7 kJ/mol solute The overall energy change for the solution process, AHa is the sum of the enthalpies of the threoe stepo. Whether AHs endothermic or exothermic depends on the relative magnitudes of AH, AH, and AH, where the subscript Indicates the step in the process corresponding to the enthalpy value Calculate the enthalpy of solution in kilojoules per mole of solute Enter your answer numerically in kilojoules per mole of solute. > View…In oil In water Sample Solubility (+/-) Solubility (+/-) Mixture Description Mixture Description Acetic acid (vinegar) Sucrose (sugar) Monosodium glutamate (vetsin) Cellulose (cotton fiber) Isopropyl or ethyl alcohol Fatty acid salts (soap) Kerosene Naphthalene bals oogy Envitonmental Science (optional) (+) soluble/miscible; (-) insoluble/immiscible; (+/-) slightly soluble/miscible
- You need approximately 300 mL of dilute copper sulfate (CusO.). Although you don't need to know its concentration very precisely, you have decided that 400ppm copper sulfate would be suitable. You have 1500ppm copper sulfate solution available. Prepare your sohlution and write a VERY brief description of how you did it. Make sure you mention the amount of material and which equipment was used.For an ethanol-chloroform mixture at 545 mmHg, determine: a) The Liquid - Vapor equilibrium diagram (1pt) b) Boiling temperature with 20% mass of ethanol (1pt) c) The composition of a mixture that has gone through two distillation stages (1pt)4 The Liquid-Vapor Equilibrium line in a one component system should always have a positive slope on a Pressure-Temperature diagram. Explain why? Draw a neat phase diagram of a one component system that can exist in two allotropic forms.
- The table below shows temperature/composition data collected for a mixture of methylbenzene (M) and octane (O) at 1 atm. Recall that x stands for the mole fraction in the liquid and y stands for the mole fraction in the vapor in equilibrium. The boiling points for methylbenzene (M) and octane (O) are 110.60C and 125.60C, respectively. Construct the phase diagram with Temperature vs. xM. What is the composition of the vapor in equilibrium with the liquid of composition (a) xM = 0.250 and (b) xO = 0.250. T (0C) 110.9 112.0 114.0 115.8 117.3 119.0 121.1 123.0 xM 0.908 0.795 0.615 0.527 0.408 0.300 0.203 0.097 yM 0.923 0.836 0.698 0.624 0.527 0.410 0.297 0.1643. Refer to the phase diagram depicted below: When 7 moles of A and 3 moles of B are mixed at 50oC which is then cooled to 10oC the sample turns into two liquid phases, phase I has mole fraction xB=0.14 (see diagram below). Find the phase II mole fraction xB, and then calculate the ratio of amount of substance in phase I to that in phase II using Lever rule. Please enter your answer as a number with two decimals. for example, if the ratio you calculated is 2:3, you enter as 0.674.0g of potassium hydrogen tartrate was added to 300mL distilled water. The temperature of the solution is 23.1C. The liquid was filtered and 50mL of the filtered solution was transferred to 250mL beaker, two drops of phenolpthalein was added to the 250mL beaker. The concentration of NaOH is 1.0 M that is filled in the 2mL graduate pipette, single drops of NaOH was added to the 250mL beaker until the solution turns pink and the potassium hydrogen tartrate reach the endpoint. The datd of four trials was collected. Please answer the following questions 4) calculate ksp for potassium hydrogen tartrate for each trial and average ksp for thr experiment 5) calculate the percent error in you value of ksp using reference that is found as the theoretical value. 6) why was the temperature of the saturated solution recorded?
- 4.0g of potassium hydrogen tartrate was added to 300mL distilled water. The temperature of the solution is 23.1C. The liquid was filtered and 50mL of the filtered solution was transferred to 250mL beaker, two drops of phenolpthalein was added to the 250mL beaker. The concentration of NaOH is 1.0 M that is filled in the 2mL graduate pipette, single drops of NaOH was added to the 250mL beaker until the solution turns pink and the potassium hydrogen tartrate reach the endpoint. The datd of four trials was collected. Please answer the following questions 1) calculate the total volume and moles of NaOH required to reach the endpoint for each trial. 2) calculate the molar solubility of potassium hydrogen tartate ( in mol/L) for each trial. 3) calculate the average molar solubility of potassium hydrogen tartate for the four trials. What is the average solubility of potassium hydrogen tartrate in g/L? 4) calculate ksp for potassium hydrogen tartrate for each trial and average ksp for thr…Explain the principle of electrostatic precipitation in gas cleaning .A standard solution is prepared by diluting the stock solution and used in chemical analysis for preparing the standard curve. Larutan piawai disediakan dengan melakukan pencairan larutan stok dan digunakan dalam analisis kimia untuk penyediaan lengkuk piawai. A) Illustrate how do you prepare a stock solution of 0.01 g of NaNO2 in one liter of distilled water in laboratory.