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CHEM 121 Highline Community College Introduction to Density Questions
Watch the videos for this lab, writing down the data shown.
For Part A: Density of pre- and post- 1982 pennies, Tria ...
CHEM 121 Highline Community College Introduction to Density Questions
Watch the videos for this lab, writing down the data shown.
For Part A: Density of pre- and post- 1982 pennies, Trial 1 for each set of pennies is shown in the first video [+], and Trial 2 for each set us shown in the second video [+]. Watch each video and record the data into your data table. Then, enter the data into the questions in this assessment. This will give you feedback on the accuracy of your measurements.
For Part B: Density of an Unknown Liquid, watch the third video [+], and record data into Data Table B. Instead of Trial 2, we will calculate the density of a 50/50 mixture of the Unknown liquid with water. You can cross out "Trial 2" and write: Mixture. Then record the data in the same data table. We will NOT calculate an average of these values, since they are different liquids.
For Part C: Density of CO2 Gas, I will provide data to you so that you can complete the calculations for the Post-Lab questions.
Videos:Part A Trial 1: Density of Pennies Trial 1 for pre- and post-1982 pennies [+]
Part A Trial 2: Density of Pennies Trial 2 for pre- and post-1982 pennies [+]
Part B: Density of an Unknown Liquid, and a 50/50 mixture of Unknown with water. [+]
1.)After recording data from the videos into your data table, enter the following values in the table below
Pre-1981 PenniesPost-1983 Pennies Trial 1Trial 2Trial 1Trial 2Total Mass of pennies g g g gVolume of water before pennies added (Vinitial) mL mL mL mLVolume of water after pennies added (Vfinal) mL mL mL mL
2.)After recording data from the videos into your data table, enter the following values in the table below:
Unknown LiquidMixtureMass of empty graduated cylinder gMass of graduated cylinder with 10.0 mL liquid g g
3.)For Part C, enter the following values in your data table and use these values to complete the calculations for Part C, below.
Mass of dry, empty 125-mL flask with stopper106.1672 gMass of 125-mL flask with CO2 and stopper106.2533 gActual volume for gas inside the flask146.3 mL
First, calculate the mass of air inside the empty flask. This air gets pushed out when the dry ice sublimes into CO2(g). When you weigh an “empty” flask, it is not really empty; the flask is filled with air. The mass of this air is generally insignificant when compared to the masses of solids and liquids, but it is significant compared to the mass of other gases, like CO2. When the CO2 sublimates, it displaces the air. To calculate the correct mass for CO2, the mass of the air must be subtracted from the mass of the “empty flask”.
Use the measured volume of the flask (above) and the density of air (1.2 g/L) to calculate mass. Note the units! Mass of air in flask: g air
Calculate the mass of flask if it were truly empty using the equation below:masstruly empty flask = massempty flask — massair in flask = g truly empty flask
Calculate the mass of CO2 in the flask using the equation below:massCO2 = massflask with CO2 — masstruly empty flask = g CO2
Finally, calculate the density (in g/L) of CO2 gas (note units!):
Density of CO2 gas: g/L CO2
Faraday’s Law with Magnets and Coils Physics De Anza College Lab Report on Physics
I would like to have a lab report that is about 2~3 pages long. here are lab manual , lap report sample
Faraday’s Law with Magnets and Coils Physics De Anza College Lab Report on Physics
I would like to have a lab report that is about 2~3 pages long. here are lab manual , lap report sample
GMC Week 3 Med Terms Nervous and Sensory System Case Study
Summary: Please read the SOAP note below and use that information and your textbook to follow the accompanying instructio ...
GMC Week 3 Med Terms Nervous and Sensory System Case Study
Summary: Please read the SOAP note below and use that information and your textbook to follow the accompanying instructions. Use complete sentences with proper spelling, grammar and punctuation. Be specific and detailed when following the instructions. Remember to properly cite any outside resources used in APA format.Case Study:You are a medical scribe working in the emergency department. Your patient is a 28-year-old man named James. The following is James’s explanation of events leading to his trip to the emergency department:“I was reroofing my house when a gust of wind caught me just right. It blew me right off the roof. I thought I was in luck because I was able to twist around and land on my feet, but when I hit, I heard a loud SNAP! My leg bone broke through my pants and I lost the feeling in my foot.”On arrival, James was given a pain-killer to help him stay still while the doctor did an exam and X-rays were taken because he was in a great deal of pain. The physician found a break in the femur of the left leg that was offset and shifted (the type of break). James had muscle weakness below the break, and some fluid buildup in his knee on the other side. No other issues were noted in the physical exam and review of systems. An X-ray confirmed the offset and shifted fracture.A bone doctor was called for consult, and she decided that the best course of action was to return the bones to their original position surgically, and to anchor plates to the bone to fix it in place. Following the surgery, James will need to follow-up with his bone doctor in ten days, and a physical therapist 8 weeks after surgery.Instructions:Part 1: List and define each of the abbreviations/words in red text. Tell what the abbreviations stand for and then describe what they mean. Part 2: Use the information gathered to explain to the patient in normal/general (layman’s) terms what the physician understood to be the problem, what was found in the physical exam and tests, the diagnosis, and the plan of care. (These steps represent SOAP therefore, the SOAP labels should be included on each part.
Kaplan University Snells Law Virtual Lab Data and Analysis
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Kaplan University Snells Law Virtual Lab Data and Analysis
jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj jjjjjjjjjjjjjjjjjjjjjjjjjjjjj jjjjjjjjjjjjjjjjjjjjj jjjjjjjjjjjjjjjjjjjjjjjjj
14 pages
Covid 19 How It Affects The Human Body
COVID-19 is a respiratory disease caused by a virus called SARS-CoV-2, which was identified in 2019. The most common sympt ...
Covid 19 How It Affects The Human Body
COVID-19 is a respiratory disease caused by a virus called SARS-CoV-2, which was identified in 2019. The most common symptoms include fever, cough, ...
University of Tennessee Chemistry Reactivity Discussion
5. In the laboratory, you are given two small chips of each of the unknown metals X, Y, and Z, alongwith dropper bottles c ...
University of Tennessee Chemistry Reactivity Discussion
5. In the laboratory, you are given two small chips of each of the unknown metals X, Y, and Z, alongwith dropper bottles containing solutions of XCl2(aq) and ZCl2(aq). Describe an experimentalstrategy you could use to determine the relative activities of X, Y, and Z.
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Most Popular Content
CHEM 121 Highline Community College Introduction to Density Questions
Watch the videos for this lab, writing down the data shown.
For Part A: Density of pre- and post- 1982 pennies, Tria ...
CHEM 121 Highline Community College Introduction to Density Questions
Watch the videos for this lab, writing down the data shown.
For Part A: Density of pre- and post- 1982 pennies, Trial 1 for each set of pennies is shown in the first video [+], and Trial 2 for each set us shown in the second video [+]. Watch each video and record the data into your data table. Then, enter the data into the questions in this assessment. This will give you feedback on the accuracy of your measurements.
For Part B: Density of an Unknown Liquid, watch the third video [+], and record data into Data Table B. Instead of Trial 2, we will calculate the density of a 50/50 mixture of the Unknown liquid with water. You can cross out "Trial 2" and write: Mixture. Then record the data in the same data table. We will NOT calculate an average of these values, since they are different liquids.
For Part C: Density of CO2 Gas, I will provide data to you so that you can complete the calculations for the Post-Lab questions.
Videos:Part A Trial 1: Density of Pennies Trial 1 for pre- and post-1982 pennies [+]
Part A Trial 2: Density of Pennies Trial 2 for pre- and post-1982 pennies [+]
Part B: Density of an Unknown Liquid, and a 50/50 mixture of Unknown with water. [+]
1.)After recording data from the videos into your data table, enter the following values in the table below
Pre-1981 PenniesPost-1983 Pennies Trial 1Trial 2Trial 1Trial 2Total Mass of pennies g g g gVolume of water before pennies added (Vinitial) mL mL mL mLVolume of water after pennies added (Vfinal) mL mL mL mL
2.)After recording data from the videos into your data table, enter the following values in the table below:
Unknown LiquidMixtureMass of empty graduated cylinder gMass of graduated cylinder with 10.0 mL liquid g g
3.)For Part C, enter the following values in your data table and use these values to complete the calculations for Part C, below.
Mass of dry, empty 125-mL flask with stopper106.1672 gMass of 125-mL flask with CO2 and stopper106.2533 gActual volume for gas inside the flask146.3 mL
First, calculate the mass of air inside the empty flask. This air gets pushed out when the dry ice sublimes into CO2(g). When you weigh an “empty” flask, it is not really empty; the flask is filled with air. The mass of this air is generally insignificant when compared to the masses of solids and liquids, but it is significant compared to the mass of other gases, like CO2. When the CO2 sublimates, it displaces the air. To calculate the correct mass for CO2, the mass of the air must be subtracted from the mass of the “empty flask”.
Use the measured volume of the flask (above) and the density of air (1.2 g/L) to calculate mass. Note the units! Mass of air in flask: g air
Calculate the mass of flask if it were truly empty using the equation below:masstruly empty flask = massempty flask — massair in flask = g truly empty flask
Calculate the mass of CO2 in the flask using the equation below:massCO2 = massflask with CO2 — masstruly empty flask = g CO2
Finally, calculate the density (in g/L) of CO2 gas (note units!):
Density of CO2 gas: g/L CO2
Faraday’s Law with Magnets and Coils Physics De Anza College Lab Report on Physics
I would like to have a lab report that is about 2~3 pages long. here are lab manual , lap report sample
Faraday’s Law with Magnets and Coils Physics De Anza College Lab Report on Physics
I would like to have a lab report that is about 2~3 pages long. here are lab manual , lap report sample
GMC Week 3 Med Terms Nervous and Sensory System Case Study
Summary: Please read the SOAP note below and use that information and your textbook to follow the accompanying instructio ...
GMC Week 3 Med Terms Nervous and Sensory System Case Study
Summary: Please read the SOAP note below and use that information and your textbook to follow the accompanying instructions. Use complete sentences with proper spelling, grammar and punctuation. Be specific and detailed when following the instructions. Remember to properly cite any outside resources used in APA format.Case Study:You are a medical scribe working in the emergency department. Your patient is a 28-year-old man named James. The following is James’s explanation of events leading to his trip to the emergency department:“I was reroofing my house when a gust of wind caught me just right. It blew me right off the roof. I thought I was in luck because I was able to twist around and land on my feet, but when I hit, I heard a loud SNAP! My leg bone broke through my pants and I lost the feeling in my foot.”On arrival, James was given a pain-killer to help him stay still while the doctor did an exam and X-rays were taken because he was in a great deal of pain. The physician found a break in the femur of the left leg that was offset and shifted (the type of break). James had muscle weakness below the break, and some fluid buildup in his knee on the other side. No other issues were noted in the physical exam and review of systems. An X-ray confirmed the offset and shifted fracture.A bone doctor was called for consult, and she decided that the best course of action was to return the bones to their original position surgically, and to anchor plates to the bone to fix it in place. Following the surgery, James will need to follow-up with his bone doctor in ten days, and a physical therapist 8 weeks after surgery.Instructions:Part 1: List and define each of the abbreviations/words in red text. Tell what the abbreviations stand for and then describe what they mean. Part 2: Use the information gathered to explain to the patient in normal/general (layman’s) terms what the physician understood to be the problem, what was found in the physical exam and tests, the diagnosis, and the plan of care. (These steps represent SOAP therefore, the SOAP labels should be included on each part.
Kaplan University Snells Law Virtual Lab Data and Analysis
jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj jjjjjjjjjjjjjjjjjjjjjjjjjjjjj jjjjjjjjjjjjjjjjjjjjj jjjjjjjjjjjjjjjjjjjjjjjjj
Kaplan University Snells Law Virtual Lab Data and Analysis
jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj jjjjjjjjjjjjjjjjjjjjjjjjjjjjj jjjjjjjjjjjjjjjjjjjjj jjjjjjjjjjjjjjjjjjjjjjjjj
14 pages
Covid 19 How It Affects The Human Body
COVID-19 is a respiratory disease caused by a virus called SARS-CoV-2, which was identified in 2019. The most common sympt ...
Covid 19 How It Affects The Human Body
COVID-19 is a respiratory disease caused by a virus called SARS-CoV-2, which was identified in 2019. The most common symptoms include fever, cough, ...
University of Tennessee Chemistry Reactivity Discussion
5. In the laboratory, you are given two small chips of each of the unknown metals X, Y, and Z, alongwith dropper bottles c ...
University of Tennessee Chemistry Reactivity Discussion
5. In the laboratory, you are given two small chips of each of the unknown metals X, Y, and Z, alongwith dropper bottles containing solutions of XCl2(aq) and ZCl2(aq). Describe an experimentalstrategy you could use to determine the relative activities of X, Y, and Z.
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