1. 4/4 points Last Response | Show Details All Responses Notes These items concern safety in the Solubility Product Constant Experiment. Selectall appropriate responses to each question. a. Which of the following are hazardous properties of copper nitrate, Cu(NO3)2? [x] It's corrosive. [_] It's a potent carcinogen (causes cancer). [x] It's an oxidizer. [_] It's a teratogen (causes birth defects). [_] It's basic. [_] It's highly flammable.b. Which of the following are hazardous properties of potassium iodate, KIO3, and copper iodate, Cu(IO3)2? [_] They're potent carcinogens (causes cancer). [_] They're acidic. [x] They're strong oxidizing agents. [_] They're toxic. [_] They're irritants. [_] They're teratogens (causes birth defects). [_] They're highly flammable. [_] They're basic.c. If any of the solids in this experiment come into contact with your skin orclothing, the first thing to do is (_) go to the TA and tell him/her about the spill. (o) gently brush the solid off with a paper towel. (_) smother the fire with whatever is handy. (_) neutralize the chemical with sodium bicarbonate solution. d. If any of the solutions in this experiment are spilled on skin or clothing, the first thing to do is (_) neutralize the chemical with sodium bicarbonate solution. (_) go to the TA and tell him/her about the spill. (o) flush the area with water. (_) smother the fire with whatever is handy. 2. 2/2 points Last Response | Show Details All Responses Notes These items concern waste handling in the Solubility Product Constant Experiment. Select the proper response to each statement. a. The wastes in the Solubility Product Constant experiment should bedisposed of in the labeled container.b. While working on the experiment, wastes should be kept in a labeled beaker at the bench. 3. 7/7 points Last Response | Show Details All Responses Notes After reading the Introduction to the Solubility Product Constants lab, please complete the following statements with one word per answer blank. a. When a sparingly soluble solid is in contact with solution, the solution is called saturated .b. Ksp is the symbol for the solubility product constant.c. When one of the ions produced by a sparingly soluble solid is present in solution from another source, the common ion effect predicts that the molar solubility will decrease.d. Molar solubility has units of molarity .e. To decrease the detection limit of copper ions in soltuion, ammonia will be added to form Cu(NH3)42+, a complex ion. 4. 3.25/3.25 points Last Response | Show Details All Responses Notes Please answer the following questions regarding the calibration curve you will prepare in this week's lab. a. concentration will be plotted on the x-axis.b. absorbance will be plotted on the y-axis.c. If the trendline of your calibration curve is y = 39.287x + 0.0010, then an absorbance of 0.350 correlates to a copper ion concentration of .00888 M. 5. 3.75/3.75 points Last Response | Show Details All Responses Notes Silver carbonate, Ag2CO3, is a sparingly soluble solid. Please answer the following questions about a saturated solution prepared by placing solid silver carbonate in pure water in which the silver ion concentration, [Ag1+], was found tobe 3.82E-04 M. a. What is the concentration of carbonate ions, [CO32-]? 1.91e-4 Mb. What is the molar solubility of silver carbonate, Ag2CO3? 1.91e-4 Mc. What is the solubility product constant, Ksp, for silver carbonate, Ag2CO3? 2.79e-116. 3.75/5 points Last Response | Show Details All Responses Notes Silver chloride, AgCl, is a sparingly soluble solid. Please answer the following questions about a saturated solution prepared by placing solid silver chloride in a1.00e-5 M NaCl(aq) solution. At some temperature, the silver ion concentration, [Ag1+], was found to be 3.12E-06 M. a. What is the concentration of chloride ions, [Cl1-], in the resulting solution? 1.31e-5 Mb. What is the molar solubility of silver chloride, AgCl, in 1.00e-5 M NaCl? 3.12e-6 Mc. The solubility of AgCl(s) in pure water is 6.40E-06 . Did the solubility increase or decrease in 1.00e-5 M NaCl solution?decreased. What is the solubility product constant, Ksp, for silver chloride, AgCl? (No
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