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Pre-Lab Exercises 1. A group of five students attempted to estimate 100 g of a substance...
help!! Experiment #7 Pre-Lab Assignment Hint: for full credit, show all calculations, use proper sig. figs....
help!!
Experiment #7 Pre-Lab Assignment Hint: for full credit, show all calculations, use proper sig. figs. and units Name Stoichiometric Analysis of a Mixture Lab Instructor Lab time Thurs. Tues. Lab Day Mon. An unknown mixture containing KCIO) was added to an ignition tube weighing 41.860 g. The tube and mixture was then found to weigh 43.772 q. After the first heating, the tube and its contents weighed 43.621 g. After the second and third heatings, it weighed 43.332 g....
Name Lab Partner LAB 9 REFLECTIVE EXERCISES Lab Section 1 What data did you collect to...
Name Lab Partner LAB 9 REFLECTIVE EXERCISES Lab Section 1 What data did you collect to indicate that you successfully produced aspirin? What did your results indicate about the purity of the aspirin you obtained? Explain your answers. 2 Given that the melting point of salicylic acid is 159 C, can you be certain that the product you isolated was not pure solicylic acid that was unchanged during the reaction? Can you be certain that the product you isolated was...
can someone help me with this physics Lab Vibrating String Experiment I'm confused please and thank...
can someone help me with this physics Lab Vibrating String
Experiment I'm confused please and thank you
I have This data for the five-time I did the Experience
Vibrating String Experiment Objective To study the factors affecting the velocity of waves in a stretched string. Apparatus Linear transducer, function generator, string, meter stick, mass set, table clamp with pulley. Optional: strobe light. Part A Attach one end of a string to the motor and pass the other end of the...
1. Your group will need approximately 6 g of the copper ammine complex to perform the...
1. Your group will need approximately 6 g of the copper ammine complex to perform the analyses. The general formula for the copper ammine complex is [Cu(NH3)x]SO4•H2O Calculate the formula weight for several values of x, x=2 through x=6. 2. You will need to prepare about 6 g of the copper ammine product. Estimate how much CuSO4•5H2O you should start with to prepare approximately 6 g of the copper ammine complex. 3. Calculate how many grams of copper sulfate pentahydrate...
Lab 10: Pre-labs This pre-lab is worth 30 points of your final grade. Show your work...
Lab 10: Pre-labs This pre-lab is worth 30 points of your final grade. Show your work to get full credit. Each problem is worth 5 points. Problem 1: The angular velocity of flywheel decreases uniformly from 12000rev/min to 3000 rev/min in 8 sec. Find the angular acceleration and the number of revolutions made by the wheel in the 8 sec interval. How many more seconds are required for the wheel to come to rest? Problem 2: A uniform meter scale...
Experiment 11: Synthesis of Aspirin pre-lab (4 pts) 1) (2 pts) Refer to the introduction on...
Experiment 11: Synthesis of Aspirin pre-lab (4 pts) 1) (2 pts) Refer to the introduction on interpreting the ferric chloride test for phenols. Two students performed the aspirin synthesis experiment. Their melting point and ferric chloride test data are shown below. Based on the results, which student's aspirin has the higher purity? Justify your choice using the melting point data and ferric chloride test results. Melting point range for pure aspirin = 136-140 °C. Melting point range (°C) Ferric chloride...
please Help no idea Name: Section: Date: CH203-F15 Organic Laboratory: Experiment 1 Pre-lab exercise In addition...
please Help no idea
Name: Section: Date: CH203-F15 Organic Laboratory: Experiment 1 Pre-lab exercise In addition to coming to lab with the prepared notebook, please complete and hand in this completed sheet before the start of the lab. This will also be graded and returned to you with the lab report. Many organic materials are liquids at room temperature, sometimes volatile liquids. Students need to learn the best way of measuring and dispensing these materials in reactions. For example, consider...
Please help me answer questions #1 through #12. Lab information and results are listed to the...
Please help me answer questions #1 through #12. Lab information
and results are listed to the right side. Thank you!
Paragraph . 1マーに 1 HTTL 2 | x' x, | so ea l E 1ヨ回ドもデ. | 2m 규亨ー过1K % Yield g aspirin obtained/ g aspirin calculated x 100 1. Mass of empty Erlenmeyer Flask,EF 2. Mass of EFsalicylic acid 3. Mass of EF+sslicylic acid + acetic anhydride 4. Mass of E 5. Calculate mass of salicylic acid used 8. Calculate...
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...
can someone help me with this physics Lab Vibrating String Experiment I'm confused please and thank...
can someone help me with this physics Lab Vibrating String
Experiment I'm confused please and thank you
I have This data for the Five-time I did the Experience
Vibrating String Experiment Objective To study the factors affecting the velocity of waves in a stretched string. Apparatus Linear transducer, function generator, string, meter stick, mass set, table clamp with pulley. Optional: strobe light. Part A Attach one end of a string to the motor and pass the other end of the...
help!!
Experiment #7 Pre-Lab Assignment Hint: for full credit, show all calculations, use proper sig. figs. and units Name Stoichiometric Analysis of a Mixture Lab Instructor Lab time Thurs. Tues. Lab Day Mon. An unknown mixture containing KCIO) was added to an ignition tube weighing 41.860 g. The tube and mixture was then found to weigh 43.772 q. After the first heating, the tube and its contents weighed 43.621 g. After the second and third heatings, it weighed 43.332 g....
Name Lab Partner LAB 9 REFLECTIVE EXERCISES Lab Section 1 What data did you collect to indicate that you successfully produced aspirin? What did your results indicate about the purity of the aspirin you obtained? Explain your answers. 2 Given that the melting point of salicylic acid is 159 C, can you be certain that the product you isolated was not pure solicylic acid that was unchanged during the reaction? Can you be certain that the product you isolated was...
can someone help me with this physics Lab Vibrating String
Experiment I'm confused please and thank you
I have This data for the five-time I did the Experience
Vibrating String Experiment Objective To study the factors affecting the velocity of waves in a stretched string. Apparatus Linear transducer, function generator, string, meter stick, mass set, table clamp with pulley. Optional: strobe light. Part A Attach one end of a string to the motor and pass the other end of the...
Lab 10: Pre-labs This pre-lab is worth 30 points of your final grade. Show your work to get full credit. Each problem is worth 5 points. Problem 1: The angular velocity of flywheel decreases uniformly from 12000rev/min to 3000 rev/min in 8 sec. Find the angular acceleration and the number of revolutions made by the wheel in the 8 sec interval. How many more seconds are required for the wheel to come to rest? Problem 2: A uniform meter scale...
Experiment 11: Synthesis of Aspirin pre-lab (4 pts) 1) (2 pts) Refer to the introduction on interpreting the ferric chloride test for phenols. Two students performed the aspirin synthesis experiment. Their melting point and ferric chloride test data are shown below. Based on the results, which student's aspirin has the higher purity? Justify your choice using the melting point data and ferric chloride test results. Melting point range for pure aspirin = 136-140 °C. Melting point range (°C) Ferric chloride...
please Help no idea
Name: Section: Date: CH203-F15 Organic Laboratory: Experiment 1 Pre-lab exercise In addition to coming to lab with the prepared notebook, please complete and hand in this completed sheet before the start of the lab. This will also be graded and returned to you with the lab report. Many organic materials are liquids at room temperature, sometimes volatile liquids. Students need to learn the best way of measuring and dispensing these materials in reactions. For example, consider...
Please help me answer questions #1 through #12. Lab information
and results are listed to the right side. Thank you!
Paragraph . 1マーに 1 HTTL 2 | x' x, | so ea l E 1ヨ回ドもデ. | 2m 규亨ー过1K % Yield g aspirin obtained/ g aspirin calculated x 100 1. Mass of empty Erlenmeyer Flask,EF 2. Mass of EFsalicylic acid 3. Mass of EF+sslicylic acid + acetic anhydride 4. Mass of E 5. Calculate mass of salicylic acid used 8. Calculate...
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...
can someone help me with this physics Lab Vibrating String
Experiment I'm confused please and thank you
I have This data for the Five-time I did the Experience
Vibrating String Experiment Objective To study the factors affecting the velocity of waves in a stretched string. Apparatus Linear transducer, function generator, string, meter stick, mass set, table clamp with pulley. Optional: strobe light. Part A Attach one end of a string to the motor and pass the other end of the...
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