why doesnt the thermometer slip through the rubber stopper? in the distallion seperation of a mixture...
Homework Answers
Thermometer doesn't slip through the rubber stopper during distillation of separation of mixture . Because the rubber stopper have greater degree of chemical resistance and elasticity.the elasticity allow thermometer to seal tightly inside the stopper so it can not be slip.for inserting thermometer in stopper the Mercury bulb should positioned below bottom inside the Round bottom flask.
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doesnt the thermometer slip through the rubber stopper? in the
distallion seperation of a mixture...
Post Lab Question: (Seperation of Benzoic Acid from Biphenyl, Crystallization and IR) Why is the beaker...
Post Lab Question: (Seperation of Benzoic Acid from Biphenyl, Crystallization and IR) Why is the beaker containing the bicarbonate extracts cooled before adding HCl?
seperation of acid neutral Experiment 5: Separation of Acid-Neutral Mixture Post-Lab Questions 1. Draw and label...
seperation of acid neutral
Experiment 5: Separation of Acid-Neutral Mixture Post-Lab Questions 1. Draw and label the structures of the major and minor components of the acidic and neutral mixtures. 2. Although acetic acid - water may be used as a "solvent pair", why are dilute solutions of an inorganic acid/water (or, inorganic base/water) avoided in recrystallization attempts? (Hint: see Wade Ed: Sections 21-12, 21- 13. Consider functional-group possibilities.] 3. Using a flow diagram, show the separation of a mixture...
why is the nucleophile attaching to the middle carbon (the diagram on the bottom)? why doesnt it attach to the carbon o...
why is the nucleophile attaching to the middle carbon (the
diagram on the bottom)? why doesnt it attach to the carbon on the
right side?
my professors says its not because of more or less space on
either sides, nor because of hybridization. please help
thanks.
10/31 Lab 12 1 Synthesis: ooh o alt * Catalyst know how to draw acetic anhydride Salycilic acia HO aspian CH3 Nu why is it going to this carbon ?
i just wanna double check whether i answered correct or not please. Why do we measure...
i just wanna double check whether i answered correct or not
please.
Why do we measure the volume of the flask in this experiment with water rather than using the volume listed on the side? Select all correct answers that apply. Must include all correct answers for full credit. The volume is not accurate on a flask to the number of significant figures required for this experiment The volumetric markings on the flask do not extend to it's full height...
Construct a flow chart describing the seperation of the mixture and the isolation of each compound...
Construct a flow chart describing the seperation of the
mixture and the isolation of each compound in this experiment. (Lab
steps/procedures includes for reference)
4. Construct a flow chart describing the separation of the mixture and the isolation of each compound in this experiment. A commonly used method of separating a mixture of organic compounds is known as liquid-liquid extraction. Most reactions of organic compounds require extraction at some stage of product purification. In this experiment you will use extraction...
(6 marks) An easy way to analyse the amount of CO2 in a gaseous mixture of CO2 and CO is to pass the gaseous mixture through an aqueous solution that contains excess Ba(OH)2. The CO2 will react...
(6 marks) An easy way to analyse the amount of CO2 in a gaseous mixture of CO2 and CO is to pass the gaseous mixture through an aqueous solution that contains excess Ba(OH)2. The CO2 will react yielding a precipitate of BaCOs but the CO does not react (you will learn why in higher classes). The aforementioned method was used to analyse the equilibrium composition of the gas evolved when 1.77 g of CO2 reacted with 2.0 g of graphite...
calculate the % yield fir the n-butylacetate synthesis. show how you obtained expected yield. Mass of...
calculate the % yield fir the n-butylacetate synthesis. show how
you obtained expected yield.
Mass of final product was 3.4g
INSTRUCTIONS A. SETTING UP THE EXPERIMENT This wetion was completed during Experiment D. Proceed to Part B. anol) and 0.75 mL concentrated H2SO4 1. GOGGLES AND GLOVES. Carefully pour the following materials into a flask: 5 ml glacial acetic acid, 4.5 mLn-butanol (1-butanol) and 0.75 ml 2. Swirl carefully to mix the components thoroughly. 3. Seal the flask well (cork...
explain why casein precipitates (curdles) when acetic acid is added to your milk mixture. What is...
explain why casein precipitates (curdles) when acetic acid is added to your milk mixture. What is the function of acetic acid. 5. This precipitation can also be achieved through bacterial fermentation (e.g., spoiled milk). Explain what is happening during this process. 6. A third method of curdling milk is by adding the enzyme rennin (chymosin). Most cheeses are made this way. Do some online research and explain how this protease enzyme works and why milk curdles when it's added. 7....
453 mg of a mixture of BaCl2 and RaCl2 was dissolved in 500 mL of water and 100.0 mL of 1 M Na2SO4 was added. The resulting precipitate was filtered through a tared weighing crucible, washed and dried...
453 mg of a mixture of BaCl2 and RaCl2 was dissolved in 500 mL of water and 100.0 mL of 1 M Na2SO4 was added. The resulting precipitate was filtered through a tared weighing crucible, washed and dried at 110 C. the weight of the precipitate was 505 mg. Calculate the mole% Radium in the mixture. MW: BaCl2 208.23, RaCl2: 296.09, BaSO4: 233.38, RaSO4: 322 Why would this experiment never be conducted in a teaching laboratory?
Separating a Mixture, Recrystallization, pre-lab assignment could you also explain why you chose that substance for...
Separating a Mixture, Recrystallization, pre-lab
assignment
could you also explain why you chose that substance for the empty
spaces and question marks
EXPERIMENT 4 Pre-Lab Assignment Separating a Mixture, Recrystalliration Name Date 1. Complete the following flowchart which shows how to separate a mixture of sand, sodium chloride and acetanilide. Notice that after a separation process (a down arrow) the filtered solids are shown on the left and the filtrate (the liquid) is shown on the right. The terminal step...
seperation of acid neutral
Experiment 5: Separation of Acid-Neutral Mixture Post-Lab Questions 1. Draw and label the structures of the major and minor components of the acidic and neutral mixtures. 2. Although acetic acid - water may be used as a "solvent pair", why are dilute solutions of an inorganic acid/water (or, inorganic base/water) avoided in recrystallization attempts? (Hint: see Wade Ed: Sections 21-12, 21- 13. Consider functional-group possibilities.] 3. Using a flow diagram, show the separation of a mixture...
why is the nucleophile attaching to the middle carbon (the
diagram on the bottom)? why doesnt it attach to the carbon on the
right side?
my professors says its not because of more or less space on
either sides, nor because of hybridization. please help
thanks.
10/31 Lab 12 1 Synthesis: ooh o alt * Catalyst know how to draw acetic anhydride Salycilic acia HO aspian CH3 Nu why is it going to this carbon ?
i just wanna double check whether i answered correct or not
please.
Why do we measure the volume of the flask in this experiment with water rather than using the volume listed on the side? Select all correct answers that apply. Must include all correct answers for full credit. The volume is not accurate on a flask to the number of significant figures required for this experiment The volumetric markings on the flask do not extend to it's full height...
Construct a flow chart describing the seperation of the
mixture and the isolation of each compound in this experiment. (Lab
steps/procedures includes for reference)
4. Construct a flow chart describing the separation of the mixture and the isolation of each compound in this experiment. A commonly used method of separating a mixture of organic compounds is known as liquid-liquid extraction. Most reactions of organic compounds require extraction at some stage of product purification. In this experiment you will use extraction...
(6 marks) An easy way to analyse the amount of CO2 in a gaseous mixture of CO2 and CO is to pass the gaseous mixture through an aqueous solution that contains excess Ba(OH)2. The CO2 will react yielding a precipitate of BaCOs but the CO does not react (you will learn why in higher classes). The aforementioned method was used to analyse the equilibrium composition of the gas evolved when 1.77 g of CO2 reacted with 2.0 g of graphite...
calculate the % yield fir the n-butylacetate synthesis. show how
you obtained expected yield.
Mass of final product was 3.4g
INSTRUCTIONS A. SETTING UP THE EXPERIMENT This wetion was completed during Experiment D. Proceed to Part B. anol) and 0.75 mL concentrated H2SO4 1. GOGGLES AND GLOVES. Carefully pour the following materials into a flask: 5 ml glacial acetic acid, 4.5 mLn-butanol (1-butanol) and 0.75 ml 2. Swirl carefully to mix the components thoroughly. 3. Seal the flask well (cork...
explain why casein precipitates (curdles) when acetic acid is added to your milk mixture. What is the function of acetic acid. 5. This precipitation can also be achieved through bacterial fermentation (e.g., spoiled milk). Explain what is happening during this process. 6. A third method of curdling milk is by adding the enzyme rennin (chymosin). Most cheeses are made this way. Do some online research and explain how this protease enzyme works and why milk curdles when it's added. 7....
Separating a Mixture, Recrystallization, pre-lab
assignment
could you also explain why you chose that substance for the empty
spaces and question marks
EXPERIMENT 4 Pre-Lab Assignment Separating a Mixture, Recrystalliration Name Date 1. Complete the following flowchart which shows how to separate a mixture of sand, sodium chloride and acetanilide. Notice that after a separation process (a down arrow) the filtered solids are shown on the left and the filtrate (the liquid) is shown on the right. The terminal step...
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