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- In the experiment of making salted eggs, a cleaned egg is immersed in a solution a lot of Nacl salt. Nacl in solution diffuses into the egg through the eggshelI, then towards the egg whites and yolks. Eggs can be considered perfectly spherical in shape with the radius in R and the thickness of the eggshell is T. The concentration of NaCl in the soaking solution is Caci,o and its value can be considered constant during the immersion process. Before being included in soaking solution, there is no Nacl in egg whites and egg yolks. Diffusion through eggshell can be ignored because it occurs very quickly. If the diffusivity coefficient of Nacl in egg white and egg yolk can be considered equal (DNaci), a. Use the component continuity equation table, so that the equation that is describe the profile of Nacl concentration in eggs (in the form of a differential equation along with the boundary conditions). b. Convert the equation obtained in point a into an equation of the form dimensionless…Which of the following given statements is false? 1. The electrical conductivity of water is dependent on the temperature of the water sample. Removal of suspended particles by sedimentation depends upon the size and specific gravity of those particles. Suspended solids retained on a filter may remain in suspension if their specific gravity is similar to water while very dense particles passing through the filter may settle. Sodium hydroxide and sodium chloride are both bases. 2. In a sedimentation process, the solid particles settled at the bottom of the container because they are heavier than water and are acted upon by gravity. In the process of distillation, the condenser helps in the conversion of the vapor that goes inside it into liquid. After filtering a mixture using a filter paper, there is more solute at the bottom of the container compared to the contents of the filter paper. In the reaction between dry ferrous sulfate and dry potassium ferricyanide, no change is observed.…A brine solution of salt flows at a constant rate of 4 L/min into a large tank that initially held 5 L of pure water. The solution inside the tank is kept well stirred and flows out of the tank at a rate of 2 L/min. If the concentration of salt in the brine entering the tank is 0.1 kg/L, determine (a) the mass and (b) the concentration of salt in the tank after 30 mins.
- ((CH;),CO). A solution is made by mixing 110. g of water and 82. g of acetone Calculate the mole fraction of water in this solution. Round your answer to 2 significant digits.逐步解决 不使用人工智能出色完成工作 非常感谢您的支持 SOLVE STEP BY STEP IN DIGITAL FORMAT DON'T USE AI | DON'T USE AI | DON'T USE AI | DON'T USE AI | 2. An ethyl alcohol solution that is 75% alcohol by weight is to be used as a bactericide. The solution is to be prepared by adding water to a 95% ethyl alcohol solution. How many grams of each should be used to prepare 400 grams of the bactericide?Help me solve the following problem correctly and completely. Express all answers to the nearest fourth decimal place. Also, kindlly put the right unit. Thank you! *An automobile antifreeze mixture is made by mixing equal volumes of ethylene glycol (SG= 1.114; MW = 62.07 g/mole) and water at 20o C. The density of the mixture is 1.070 g/mL. Express the concentration of ethylene glycol as a) Volume percent b) Mass percent c) Molarity d) Molality e) Mole fraction Note: Answer the last two parts, d and e.
- Help me solve the following problem correctly and completely. Express all answers to the nearest fourth decimal place. Also, kindlly put the right unit. Thank you! *An automobile antifreeze mixture is made by mixing equal volumes of ethylene glycol (SG= 1.114; MW = 62.07 g/mole) and water at 20o C. The density of the mixture is 1.070 g/mL. Express the concentration of ethylene glycol as a) Volume percent b) Mass percent c) Molarity d) Molality e) Mole fractionA chemist prepares a solution of zinc nitrate (Zn(NO,),) by measuring out 78. umol of zinc nitrate into a 100. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mmol/L of the chemist's zinc nitrate solution. Round your answer to 2 significant digits. mmol x10 I Don't Know Submit O 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center A 0. 区 W DELLA student is measuring the density of soda using a completely-filled flask of known volume. The student performing the experiment uses a sample that contains air bubbles. The student expects that this will artifically increase the calculated density of the solution. Select the answer below that is most appropriate. The student is incorrect. Air bubbles will have no effect on the calculated density of the soda. The student is incorrect. Air bubbles in the sample will cause the calculated density to decrease. The student is correct. Air bubbles in the sample will cause the calculated density to increase. The student is incorrect. Air bubbles will react with the water to form oxygen gas, which will cause the calculated density to increase. The student is incorrect. Air bubbles will react with the water to form carbon dioxide, which will cause the calculated density to increase.
- 12 of 19 <. I Review | Constants | Periodic Table Part B Before investigating the scene, the technician must dilute the luminol solution to a concentration of 4.00×10-2 M. The diluted solution is then placed in a spray bottle for application on the desired surfaces. How many moles of luminol are present in 2.00 L of the diluted spray? Express your answer with the appropriate units. » View Available Hint(s) moles of luminol = Value Units %3DWhen you walked in to Mrs. Bateast's lab today, you noticed that your partner group had a 0.05432 ml mixture sample of sand and water in a beaker. When your group began the lab to separate the mixture in to different weight boats, you thought it would be very difficult to remove the sand. As a result, you added another 5.2ml of water to assist with removing it. a. Which separate method should be used to quickly and effectively separate the two substances. Explain why you chose this method. b. Determine the number of significant figures in your original sample. c. How much total mixture did you have after adding additional water. (provide the equation, calculator answer and the final answer rounding to the correct number of significant figures.Calculate the volume in milliliters of a 2.18M sodium chloride solution that contains 375. mmol of sodium chloride (NaCI) . Round your answer to 3 significant digits. OmlL ||mL x10 Submit Assignment Continue 2022 McGraw Hill LLC. AIl Rights Reserved. Terms of Use Privacy Center I Accessibility IMG-4492.jpg IMG-4482.jpg IMG-4481.jpg IMG-4480.jpg IMG-4493.jpg MacBook Air DD 80 F7 F8 F9 F10 F11 F1 F2 F3 F4 F5 F6 @ # % & * ( 2 3 4 5 6 7 8 %24