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#1 You work for a company that produces liquid adhesives. These adhesives consist of a polymer...
A liquid adhesive, which is used to make laminated boards, consists of a polymer dissolved in...
A liquid adhesive, which is used to make laminated boards, consists of a polymer dissolved in a solvent. The amount of polymer in the solution has to be carefully controlled for this application. When the supplier of the adhesive receives an order for 3000 kg of an adhesive solution containing 13 wt% polymer, all it has on hand is (1) 500 kg of a 10 wt. % solution, (2) a very large quantity of a 20 wt. % solution, and...
please help me answer question 1 to 3, thank you Chapter 9, Solutions, Review & Extra Credit. 2 Points for each XC c...
please help me answer question 1 to 3,
thank you
Chapter 9, Solutions, Review & Extra Credit. 2 Points for each XC correct answer; 6 points total, max. Partial Credit given. Suggestions...work in teams [it will improve the learning experience] 1. Solutions-A solution forms when a solute (the smaller quantity) dissolves in a solvent (the larger quantity). In a solution, the particles of solute are evenly distributed in the solvent. A solute may be a gas, liquid or solid. A...
BL#1: You find a bottle in the lab that is labeled, "organic liquid". You run an...
BL#1: You find a bottle in the lab that is labeled, "organic liquid". You run an IR, 13C NMR, and iH NMR of the sample. From this, you determine a structure that contains a chiral center. How can you determine which enantiomer, R or S, that you have? Explain. BL#2: You dilute 1 g of an organic liquid, with ethanol, to 10 mL in a volumetric flask. What concentration is used to calculate the specific rotation, [a] ? 20 -6.8°...
1. Refer to the vapor-liquid composition curve for a benzene/toluene solution below. a) Are benze...
Need assistance with graph and pre-lab questjons
1. Refer to the vapor-liquid composition curve for a benzene/toluene solution below. a) Are benzene and toluene miscible or immiscible? b) What is the boiling point of a benzene-toluene mixture that is 20% benzene? c) What percent benzene is a benzene-toluene mixture that boils at 85°C? 110 100 95 0F-- 85 A" 80 75 0 10 20 30 40 50 60 7o 80 90 100 Molo porcont benzene 2. Refer to the Boiling...
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...
How would you use separation techniques to recover acetone, 4-carboxyazobenzene, 1-propanol, and cumene in a laboratory...
How would you use separation techniques to recover acetone,
4-carboxyazobenzene, 1-propanol, and cumene in a laboratory
experiment.
Techniques learned are: Solvent recrystallization, thin layer
chromatography, column chromatography, liquid-liquid extraction,
distillation. (Would prefer not to do a distillation as this times
a long time).
Your company has designed a new process to dye rubbers. The process uses cumene to swell the material allowing the organic dye 4-carboxyazobenzene to penetrate more easily. The resulting rubber is able to retain its color, and...
Pre-Laboratory Exercise: Plastics Identification I. List four properties that you will use in lab...
can
someone help me find this information?
Pre-Laboratory Exercise: Plastics Identification I. List four properties that you will use in lab to determine the identity of the polymer samples 2. Describe the density test. What observation will help you determine the density of each polymer? What precautions should be taken in placing the sample in the solutions? 3. Write the name and abbreviation for the six recyclable polymers 2 huetn deisity polyetayene.HDpz poulene: PP 4. Given the list of wavenumber...
Choose the ONE best answer 1. For solution/sample storage, you must label all containers with A....
Choose the ONE best answer 1. For solution/sample storage, you must label all containers with A. Name of the chemicals 2. You used Fume Hood to: A. Handle chloroform B. Homogenize C.Fiter using cheesecloth D.A 3. The least resistant type of organism/ pathogen include: A. Enveloped virus B. Bacteria C. Fungi D. Spore 4. The most resistant type of organism/ pathogen include: A. Enveloped virus B. Bacteria C. Fungi D.Spore 5. For the disposal of hazardous chemicals you will use...
-Give a brief background on the role of pigments in photosythensis. -state your hypothesis. -finish with...
-Give a brief background on the role of pigments in
photosythensis.
-state your hypothesis.
-finish with stating the rationale for your hypothesis (how
did you arrive at these hypothesis?)
this is an introduction piece, so it doesn't need the results to
write the papee. introduction sections set up the background,
purpose, rationale, and hypothesis for a study.
Biod 20 PHOTOSYNTHESIS Background Plants harness the energy of the sun through a process called photosynthesis. The leaf is the plant organ that...
Why wouldnt a weak base, such as NH3, work just as well as KOH in (1)?...
Why wouldnt a weak base, such as NH3, work just as well as KOH
in (1)?
2.2 Is the question I have. I figured out
2.1 already.
Below is relevant info. Thanks!
2. (1) Describe how adding a solution of KOH to the original sulfide precipitate results in the separa- tion of Sn4+ ion from the other Group W cations. (2) Why wouldn't a weak base, such as aque- ous NH3, work just as well as aqueous KOH in (1)?...
A liquid adhesive, which is used to make laminated boards, consists of a polymer dissolved in a solvent. The amount of polymer in the solution has to be carefully controlled for this application. When the supplier of the adhesive receives an order for 3000 kg of an adhesive solution containing 13 wt% polymer, all it has on hand is (1) 500 kg of a 10 wt. % solution, (2) a very large quantity of a 20 wt. % solution, and...
please help me answer question 1 to 3,
thank you
Chapter 9, Solutions, Review & Extra Credit. 2 Points for each XC correct answer; 6 points total, max. Partial Credit given. Suggestions...work in teams [it will improve the learning experience] 1. Solutions-A solution forms when a solute (the smaller quantity) dissolves in a solvent (the larger quantity). In a solution, the particles of solute are evenly distributed in the solvent. A solute may be a gas, liquid or solid. A...
BL#1: You find a bottle in the lab that is labeled, "organic liquid". You run an IR, 13C NMR, and iH NMR of the sample. From this, you determine a structure that contains a chiral center. How can you determine which enantiomer, R or S, that you have? Explain. BL#2: You dilute 1 g of an organic liquid, with ethanol, to 10 mL in a volumetric flask. What concentration is used to calculate the specific rotation, [a] ? 20 -6.8°...
Need assistance with graph and pre-lab questjons
1. Refer to the vapor-liquid composition curve for a benzene/toluene solution below. a) Are benzene and toluene miscible or immiscible? b) What is the boiling point of a benzene-toluene mixture that is 20% benzene? c) What percent benzene is a benzene-toluene mixture that boils at 85°C? 110 100 95 0F-- 85 A" 80 75 0 10 20 30 40 50 60 7o 80 90 100 Molo porcont benzene 2. Refer to the Boiling...
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...
How would you use separation techniques to recover acetone,
4-carboxyazobenzene, 1-propanol, and cumene in a laboratory
experiment.
Techniques learned are: Solvent recrystallization, thin layer
chromatography, column chromatography, liquid-liquid extraction,
distillation. (Would prefer not to do a distillation as this times
a long time).
Your company has designed a new process to dye rubbers. The process uses cumene to swell the material allowing the organic dye 4-carboxyazobenzene to penetrate more easily. The resulting rubber is able to retain its color, and...
can
someone help me find this information?
Pre-Laboratory Exercise: Plastics Identification I. List four properties that you will use in lab to determine the identity of the polymer samples 2. Describe the density test. What observation will help you determine the density of each polymer? What precautions should be taken in placing the sample in the solutions? 3. Write the name and abbreviation for the six recyclable polymers 2 huetn deisity polyetayene.HDpz poulene: PP 4. Given the list of wavenumber...
Choose the ONE best answer 1. For solution/sample storage, you must label all containers with A. Name of the chemicals 2. You used Fume Hood to: A. Handle chloroform B. Homogenize C.Fiter using cheesecloth D.A 3. The least resistant type of organism/ pathogen include: A. Enveloped virus B. Bacteria C. Fungi D. Spore 4. The most resistant type of organism/ pathogen include: A. Enveloped virus B. Bacteria C. Fungi D.Spore 5. For the disposal of hazardous chemicals you will use...
-Give a brief background on the role of pigments in
photosythensis.
-state your hypothesis.
-finish with stating the rationale for your hypothesis (how
did you arrive at these hypothesis?)
this is an introduction piece, so it doesn't need the results to
write the papee. introduction sections set up the background,
purpose, rationale, and hypothesis for a study.
Biod 20 PHOTOSYNTHESIS Background Plants harness the energy of the sun through a process called photosynthesis. The leaf is the plant organ that...
Why wouldnt a weak base, such as NH3, work just as well as KOH
in (1)?
2.2 Is the question I have. I figured out
2.1 already.
Below is relevant info. Thanks!
2. (1) Describe how adding a solution of KOH to the original sulfide precipitate results in the separa- tion of Sn4+ ion from the other Group W cations. (2) Why wouldn't a weak base, such as aque- ous NH3, work just as well as aqueous KOH in (1)?...
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