2 of 2 The student then conducts an experiment to determine the solubility of AgCl in a 2.5 M NaCl solution at various temperatures. Some AgCl(s) remains in the container at all temperatures studied. The data are plotted on the graph below. 0.9 0.8- 0.7 0.6- 0.5- 0.4- 70 75 80 85 90 95 100 Temperature (°C) (h) A 1000. g sample of a saturated solution at 95 Cis cooled to 85 C. Determine the mass of AgCl(s) that would precipitate out of the solution. Mass of AgCl Dissolved (g/1000 g solution)
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- A sample of KNO3 ( 225 g) is completely dissolved in water (250 g) at 333.15 K. The solution is gradually colled to 273.15 K. At this coller temperature, KNO3 solubility in H2O is 12.1 g/100 g H2O. What mass of KNO3 (in g) will crystallize out of the solution at 273.15 K?The Thermal conductivity of rock salt measured at a temperature of 500 degrees C what value would be the closest ?3. a) An aqueous solution is 3.50% by mass potassium bromide, KBr, and has a density of 1.02 g/mL. The molality of potassium bromide in the solution is _________m. b)An aqueous solution of magnesium nitrate has a concentration of 0.474 molal. The percent by mass of magnesium nitrate in the solution is _________%. c)An aqueous solution of cobalt(II) bromide has a concentration of 0.153 molal. The percent by mass of cobalt(II) bromide in the solution is _________%.
- Write solubility product constant expression and calculate numerical value (Ksp) of each ionic compound 5 g of AgCl dissolved in 100.0 ml of water concentration of Ag = 0.0000133038 concentration of Cl = 0.0000133038 show ICE TABLEi) Write down the equation derived from your Excel generated standard curve and describe its components; ii) provide the values of the absorbance data of the unknown sample (do NOT show the absorbance data of the glycine standards). Show all details of the working out of your calculation. Indicate all units! Provide the answer with two decimals precision iii) state the answer in a full sentence. (note: avoid mathematical symbols [=, +, -, etc] in your answer sentence).Concentrations and volumes are NOT the same thing. Concentrations are in units of mass/volume (i.e., g/l or mg/ml). Volumes are in units of only volume (i.e., 1. ml). 4. a. If you mixed 265 g of sugar with water to get a final volume of 725 ml. what is the concentration of this solution in g/l? Show your work. If you took 1 ml of this solution, what would the concentration be? Explain your reasoning. you prepare a stock solution (highly concentrated) of sugar in water whose concentration is 500 g/l. you need to make a new solution that is half (1/2) as concentrated and has a final volume of 100 ml. Describe how you would make this dilution. Step one: Your new solution has a concentration of_. Step two: To make 100 ml of this new solution, you will need to add_of concentrated stock solution plus_of water. Now make a second solution that is one-tenth (1/10) as concentrated as the initial stock solution and has a final volume of 100 ml. Describe how you would make this dilution.…
- Table 2. Volume of BSA, protein content, and absorbance readings of reference solutions Solution Volume of BSA standard solution (μL) Protein content(μg/mL) Absorbance value At 595 nm 1 0 0 0 2 10 1 0.022 3 30 3 0.065 4 50 5 0.106 5 70 7 0.178 6 100 10 0.299 7 120 12 0.380 Make a graph by plotting the absorbance values versus the BSA protein content (in μg) for theseven reference solutions. When constructing the graph, be…if you had a protein sample solution of unknown concentration which gave an absorbance of 0.992 after the two-fold dilution (25 μL water + 25 μL sample). If the standard curve we constructed. what would you need to do to your sample in order to find its protein concentration more accurately?If the osmotic pressure of a 7.96×10-2-M aqueous solution of Fe2(SO4)3 was found to be 8.71 atm at 20°C, what would be the "observed" van't Hoff factor? Use the above van't Hoff factor to predict the freezing point of this solution.Note that the corresponding molality would be 8.25×10-2 m, given that the density of the solution is 0.997 g/cm3. °C Use the above van't Hoff factor to predict by how many degrees the boiling point of this solution will be elevated above that for pure water.
- Predict the diffusivity of human serum albumin at 293 K in water as a dilute solution and compare it with experimental data. Assume the following: The molecular weight of human serum albumin, MA= 72,300 kg/kmol The viscosity of water at 293 K is 0.897 x 10-3 Pa∙s The experimental data value is 5.93 x 10-11 m2/s.Please answer the question below and show all your work. You are given a pure protein sample to characterize and provided the following information: Its molar extinction coefficient, ε280, is 0.25 liters micromole^-1 cm^-1 Using a 0.5 cm pathlength cell, you measure the absorbance at 280 nm of a 20- fold dilution of your pure protein in solution (by this, we mean that 50 ul of the protein sample was diluted to a final volume of 1 ml) and find A280 = 0.40. What is the original concentration of the protein before dilution?Given that the relative molecular mass of potassium chloride (KCl) is 74.5513 g mol-1, calculate the concentration of potassium chloride solution which will be iso-osmotic with tears (305 mOsM). State your answer in both molar concentration (mol/L) and in percentage (g/100 mL). Please answer very soon will give rating surely