Your kitchen sink drain was blocked by solid fat. One solution would be to pour Draino/'lye'...
Your kitchen sink drain was blocked by solid fat. One solution would be to pour Draino/'lye' (either the solid or very concentrated solution of NaOH) down the sink. Why would this work on the molecular level?
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Your kitchen sink drain was blocked by solid fat. One
solution would be to pour Draino/'lye'...
<Chapter 15 Problem 15.89 < 17 of 24 > MI Review Constants 1 Periodic Table A...
<Chapter 15 Problem 15.89 < 17 of 24 > MI Review Constants 1 Periodic Table A sink drain can become clogged with solid fat such as glyceryl tristearate (tristearin), How would adding lye (NaOH) to the sink drain remove the blockage? • Adding NaOH will saponify lipids, forming glycerol and salts of the fatty acids that are soluble in water and would wash down the drain. Adding NaOH will saponify lipids, forming glycerol and salts of the latty acids that...
why is it important that you add phenolphthein indicator solution to the vinegar solution prior to...
why is it important that you add phenolphthein indicator
solution to the vinegar solution prior to beginning the
titrati
3. In Part IV of the Procedure, you added 6M HCl to the Discarded Solutions beaker containing excess NaOH solution. HCl reacts with NaOH as shown in Equation 5. HCl(aq) + NaOH(aq) -NaCl(aq) + H2O(l) (Eq.5) Briefly explain why it would be hazardous to dispose of either your NaOH solution or 6M HCl in the drain, yet it is safe to...
1. To extract aniline from a solution of chloroform, one would use: a. aqueous HCl b....
1. To extract aniline from a solution of chloroform, one would use: a. aqueous HCl b. aqueous NaOH c. aqueous NaHCO3 d. either B or C would work 2. To extract benzyl alcohol from a solution of chloroform, one would use a. aqueous HCl b. aqueous NaOH c. aqueous NH3 d. either B or C would work
1. Why would a chemist, when tasked with preparing a small volume of a dilute solution...
1. Why would a chemist, when tasked with preparing a small volume of a dilute solution use a dilution technique (i.e., prepare a dilute solution from a concentrated stock solution) rather than just weighing out the exact amount of solid material and dissolving it in the volumetric flask to make one solution only? 2. Calculate the number of grams of CuCl2.2H20 solid needed to prepare 25.00 mL of 0.0450 M CuCl2.2H2O solution. Show your work in the space below. 3....
All of the solutions used today can be washed down the sink with water. Solid waste...
All of the solutions used today can be washed down the sink with water. Solid waste should be thrown in the bin. Experimental This experiment is to be carried out individually NOTE: Failure to follow the correct procedures as explained in Skill 4 will result in wildly inaccurate results. The notes below do NOT give a full description of the techniques. 0 2 Standardisation of 0.1 M sodium hydroxide with the primary standard potassium hydrogenphthalate Part A (Al) In a...
Exercise 2 Separation of a Mixture Based on Acid-Base Properties One purpose of this exercise is...
Exercise 2 Separation of a Mixture Based on Acid-Base Properties One purpose of this exercise is to learn how to use a separatory funnel to extract a single component away from other compounds in solution. To do so, we will apply the principles of solubility and acid-base behavior you’re seeing in class. One of the compounds is neutral in the acid-base sense. It has no ability to either donate or accept a proton from an aqueous solution, and will remain...
Calculate the moles of acetic acid, molarity of the vinegar solution, and mass %. of acetic...
Calculate the moles of acetic acid, molarity of the vinegar solution, and mass %. of acetic acid in the vinegar using the average of three good trials used to titrate 5.00 mL of the vinegar. You may assume that the density of your vinegar sample is 1.01 g mL^-1. Drain off unused NaOH solution into a clean container and place it into a designated container. Wash the buret two times with regular tap water, then rinse with deionized water, and...
titration lab report additional images of lab report QUESTIONS 1. A student masse 0878 of an...
titration lab report
additional images of lab report
QUESTIONS 1. A student masse 0878 of an unknown acid follows the titration procedure required to reach the endpoint on a 10.0 ml Calculate the molar mass of the acid. masses out 0.878 of die in 100 ml volume and titration procedure of Partsherds th the average volume of Non to reach the endpoint on 100 ml aliquot of the acid solution is 18.3 m . 2. In the vinegar titrations (Part...
lab report titration help please! additional images on lab report 3. Federal standards require that any...
lab report titration help please!
additional images on lab report
3. Federal standards require that any commercial material called "vinegar" must contain as cast acetic acid. According to your results in question 4, does the vinegar sample you titrated meet the Federal standards? Explain why or why not. PART B: IDENTIFICATION OF AN UNKNOWN ACID DATA Molarity of NaOH used Mass of unknown acid used 0.050M 0.5989 14.43mc Average volume of NaOH used in the titration CALCULATIONS 1. Using the...
1. Suppose you are given an unknown aqueous solution that contained one of the following cations...
1. Suppose you are given an unknown aqueous solution that contained one of the following cations AR', Ba", or Na'lons. You have available the following test solutions: 1 M sulfuric acid and 1 M hydrochloric acid. Explain how you would use these test solutions to determine the identity of the cation in the unknown solution. Using complete sentences and proper terms, explain the tests you would perform, the expected outcomes, and how the results would allow you to determine the...
<Chapter 15 Problem 15.89 < 17 of 24 > MI Review Constants 1 Periodic Table A sink drain can become clogged with solid fat such as glyceryl tristearate (tristearin), How would adding lye (NaOH) to the sink drain remove the blockage? • Adding NaOH will saponify lipids, forming glycerol and salts of the fatty acids that are soluble in water and would wash down the drain. Adding NaOH will saponify lipids, forming glycerol and salts of the latty acids that...
why is it important that you add phenolphthein indicator
solution to the vinegar solution prior to beginning the
titrati
3. In Part IV of the Procedure, you added 6M HCl to the Discarded Solutions beaker containing excess NaOH solution. HCl reacts with NaOH as shown in Equation 5. HCl(aq) + NaOH(aq) -NaCl(aq) + H2O(l) (Eq.5) Briefly explain why it would be hazardous to dispose of either your NaOH solution or 6M HCl in the drain, yet it is safe to...
1. Why would a chemist, when tasked with preparing a small volume of a dilute solution use a dilution technique (i.e., prepare a dilute solution from a concentrated stock solution) rather than just weighing out the exact amount of solid material and dissolving it in the volumetric flask to make one solution only? 2. Calculate the number of grams of CuCl2.2H20 solid needed to prepare 25.00 mL of 0.0450 M CuCl2.2H2O solution. Show your work in the space below. 3....
All of the solutions used today can be washed down the sink with water. Solid waste should be thrown in the bin. Experimental This experiment is to be carried out individually NOTE: Failure to follow the correct procedures as explained in Skill 4 will result in wildly inaccurate results. The notes below do NOT give a full description of the techniques. 0 2 Standardisation of 0.1 M sodium hydroxide with the primary standard potassium hydrogenphthalate Part A (Al) In a...
Calculate the moles of acetic acid, molarity of the vinegar solution, and mass %. of acetic acid in the vinegar using the average of three good trials used to titrate 5.00 mL of the vinegar. You may assume that the density of your vinegar sample is 1.01 g mL^-1. Drain off unused NaOH solution into a clean container and place it into a designated container. Wash the buret two times with regular tap water, then rinse with deionized water, and...
titration lab report
additional images of lab report
QUESTIONS 1. A student masse 0878 of an unknown acid follows the titration procedure required to reach the endpoint on a 10.0 ml Calculate the molar mass of the acid. masses out 0.878 of die in 100 ml volume and titration procedure of Partsherds th the average volume of Non to reach the endpoint on 100 ml aliquot of the acid solution is 18.3 m . 2. In the vinegar titrations (Part...
lab report titration help please!
additional images on lab report
3. Federal standards require that any commercial material called "vinegar" must contain as cast acetic acid. According to your results in question 4, does the vinegar sample you titrated meet the Federal standards? Explain why or why not. PART B: IDENTIFICATION OF AN UNKNOWN ACID DATA Molarity of NaOH used Mass of unknown acid used 0.050M 0.5989 14.43mc Average volume of NaOH used in the titration CALCULATIONS 1. Using the...
1. Suppose you are given an unknown aqueous solution that contained one of the following cations AR', Ba", or Na'lons. You have available the following test solutions: 1 M sulfuric acid and 1 M hydrochloric acid. Explain how you would use these test solutions to determine the identity of the cation in the unknown solution. Using complete sentences and proper terms, explain the tests you would perform, the expected outcomes, and how the results would allow you to determine the...
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