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SDSU Chemistry Flame Tests for Metals Worksheet
This "lab" will demonstrate how you can identify the presence of various metal cations in an unknown sample by using a tec ...
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This "lab" will demonstrate how you can identify the presence of various metal cations in an unknown sample by using a technique called a Flame Test.It is a good idea to read more about flame test. You can find information on the basis for flame tests and how they are performed at Chem Libre (Links to an external site.) and Wikipedia. (Links to an external site.)The Beyond Labz simulation will get you to perform flame tests on a set of solutions containing known metal ions. You will then perform flame tests on 4 (four) test unknowns to identify which metal is present (there is an opportunity to practice first).To get started, first download the Beyond Labz worksheet for Flame Test experiment. You will need to print this worksheet so that you can fill it in and submit it. Please use this worksheet from Canvas instead of looking in the Beyond Labz software.OK. Now launch the Beyond Labz software, and open the Chemistry Lab.To launch the flame test simulation look at the list of worksheets on the bottom left of the window. Click "Descriptive Chemistry" and then select "Flame Tests for Metals". The lab will then open.Follow the instructions in the Flame Test Worksheet. It is a good idea to read through the entire worksheet first before you begin so that you are aware of what is expected.As you progress through the simulation, fill in data and observations on the worksheet in blue or black ink. No pencil! Even though this is a virtual lab this is good lab practice and also important to make sure your submitted work will be clear enough to grade.To help you get started you can watch a short prelab demo of Beyond Labz that I made as a narrated powerpoint presentation or videoPlay media comment.Update on procedure: August 24th. When you have identified your practice unknown, drag it to the red waste bin. A new practice unknown will then appear in the test rack labeled "unknown" in the stockroom.Preparing and submitting your workAfter you complete the worksheet, take a picture of each completed page or scan them. Make sure the quality is good enough to view clearly. If I cannot read it, I will not grade it.It is best to submit as a PDF or .jpeg (jpg) file. You can submit one file for each page of the table or combine them into one file.Check out free PDF Converter (Links to an external site.) and free PDF Merge (Links to an external site.) tools to convert photos to PDF and combine multiple PDF into one file. SmallPDF (Links to an external site.) also has other free tools for working with PDF files.
Colorado State University Carbon Footprint and Sustainable Living Discussion
Option #1: Carbon Footprint and Sustainable Living PaperIn this laboratory exercise, you will investigate how your daily a ...
Colorado State University Carbon Footprint and Sustainable Living Discussion
Option #1: Carbon Footprint and Sustainable Living PaperIn this laboratory exercise, you will investigate how your daily activities impact the environment. You will calculate your carbon footprint and then determine how you can alter your habits to live a more sustainable life.Complete all sections of the Carbon Footprint and Sustainable Living laboratory exercise, in your Environmental Science Lab Kit from Hands-On Labs, Inc. Fill out all parts of the worksheet. It will not be necessary to submit your original worksheet for this assignment.In a Word document, discuss all parts of this lab activity. Your essay should include the answers to all the worksheet questions. Do not include the original questions. Your answers should be presented in flowing paragraph form. Be sure to include all data tables and graphs from this activity in your paper. Your paper should meet the following requirements:Be 3-4 pages in length (excluding tables, graphs, and other visuals, title page, or references list)Include 1-2 outside sourcesBe formatted according to the CSU Global Writing Center (Links to an external site.).Option #2: Carbon Footprint and Sustainable Living VideoIn this laboratory exercise, you will investigate how your daily activities impact the environment. You will calculate your carbon footprint and then determine how you can alter your habits to live a more sustainable life.Complete all sections of the Carbon Footprint and Sustainable Living laboratory exercise, in your Environmental Science Lab Kit from Hands-On Labs, Inc. Fill out all parts of the worksheet. It will not be necessary to submit your original worksheet for this assignment.In a recorded video of approximately 5-10 minutes, discuss all parts of this lab activity. Your presentation should include the answers to all the worksheet questions. Be sure to show all data tables and graphs from this activity in your video. References and citations should be formatted according to the CSU Global Writing Center (Links to an external site.). and be provided on a separate paper that you turn in. To submit your video itself, please upload it to the web (YouTube, for example) and provide the URL where it can be accessed. Please do not attempt to upload your video directly to the CSU Global classroom.
Field Study: Remote Sensing and science of the environment, Environmental Science Assignment Homework Help
Field Study: Remote
Sensing. DO NOT ANSWER THESE QUESTIONS ONLY UNDERSTAND. Background
This
field study will begi ...
Field Study: Remote Sensing and science of the environment, Environmental Science Assignment Homework Help
Field Study: Remote
Sensing. DO NOT ANSWER THESE QUESTIONS ONLY UNDERSTAND. Background
This
field study will begin with the study of sea surface temperatures off the east
coast of the United States.
Then,
you will analyze a volcanic eruption. Mount Pinatubo’s eruption in 1991 was one
of the world’s largest eruptions in the past 40 years. Located in the
Philippines, the volcano introduced significant amounts of ash and gases into
the atmosphere, enough to cool the temperature of the entire earth slightly
over a period of 3 years.
Part
1: What Do These Images Reveal?
Procedure
1.
From the list of materials for this lesson, click the image titled Gulf
Stream 1. The image may open in a variety of programs. Use the application on
your computer that best shows the image.
2.
Determine what area you are viewing. Some images have an information
legend and key included; others may include geographic clues to the area shown.
Look at the information included with the image. This is an image of the ocean
temperature near the Atlantic coast of the United States, including parts of
the states from North Carolina to New Jersey.
3.
Note that each color in this image represents data. Notice the colors
closer to and farther away from the coastline. What trends do you see?
4.
From the list of materials for this lesson, click the image titled Gulf
Stream 2. Consider the two images of the same general region, but further south
along the coast. These images were taken several days apart in early September
of 1999. What are the substantial differences between them? The first image is
prior to the onset of Hurricane Dennis. The second was taken shortly after the
hurricane.
Part 2: Analysis of Volcanic Eruptions
Procedure
1.
Familiarize yourself with the location of Mount Pinatubo and the
details of the eruption. Use the Internet. Determine the longitude and latitude
of the volcano.
2.
From the list of materials for this lesson, click the image titled
Mount Pinatubo 1. All images that you will open for Mount Pinatubo were taken
after the main eruption of the volcano. Copy or save the first image. Open it
in a program that allows you to zoom in on an image. For the rest of this
exercise, it will be assumed that you are using the Paint program that many
computers have in the accessories folder. You may choose to use a graphics program
or other tool to accomplish the same tasks. For helpful tips on using Microsoft
Paint to view images, see Instructions for Using Paint to Analyze Images.
3.
Compare the images and note how far the cloud
traveled. To do this,
note that the images have a longitude and latitude grid where the
distance
between each pair of longitude or latitude lines represents 10°.
Consider that at different latitudes, 1° of longitude will not cover the
same distance. At the
latitude that you will note for the volcano, the circle of latitude (the
east-west line that circles the earth) has a length that is 96.6% of the
earth’s
circumference (the earth’s circle of latitude at the equator), which is
about
40,075 km. Since there are 360° of longitude, each degree of
longitude is equal to the length of the circle of latitude at that point
divided by 360. For the circle of latitude that passes through the
volcano,
each degree if longitude is equal to 108 km.
4.
Now that you have determined this scale, find the center of the cloud
as best you can. Note what you consider the latitude and longitude of the
center of the cloud. There will be variance between the location you choose as
the center and what others may choose. Additionally, remember that each pixel
is not a point but rather a large square that covers a significant area.
5.
Repeat this procedure for the other satellite images, Mount Pinatubo 2
and Mount Pinatubo 3. Since the cloud seems to be getting larger, it may be
more difficult to determine its center, but use a point that is in the center
of the white area on the image. These images do not have a grid as the first
one did, so you will have to estimate the latitude and longitude to the nearest
degree. Record your results in the table.
6.
Calculate the distance that the center of the cloud traveled from Mount
Pinatubo. Assume that the distance north and south is negligible compared to
the distance to the east and west. This can be calculated easily by determining
the number of degrees longitude the center of the cloud moved and multiplying
the result by 108 km, the number of kilometers in a degree.
Distance Traveled by the Gas Cloud of Mount Pinatubo
Date
Latitude (°)
Longitude (°)
Distance traveled (km)
Position of the volcano
Center of the cloud on
June 16, 1991
Center of the cloud on
June 17, 1991
Center of the cloud on
June 18, 1991
7.
Plot a graph of cloud distance vs. time.
Part 3: Closer to Home
Procedure
1. Download and install Google
Earth. Use the Instructions for Downloading Google Earth to help with the
process.
2.
Note that Google Earth will allow you to view the location where you
live in detail. Perform an analysis of the different types of land usage that
are exhibited. To do this, find an image that is centered on your residence and
save it somewhere you will be able to find it easily.
3.
Open and zoom in on the image until it is pixilated. Microsoft Paint is
a valuable tool for this, though you may use another graphics program for this
analysis. For helpful tips on using Microsoft Paint to view images, see Instructions
for Using Paint to Analyze Images. For your analysis, indicate the size of the
area that you chose to use (for example, 250 pixels × 200 pixels).
4.
Determine the types of land usage in the image. Common land types are
vegetation, roads, streams, and buildings. Feel free to include others as you
need to.
5.
Determine the actual area of a pixel in square meters.
6.
Determine the percentage for each land type in your region.
Land Usage around Your Residence
Land type
Size of area for land type (number of pixels)
Total number of pixels in sample
Percentage
Housing/buildings
Roads
Vegetation
ANSWER THESE QUESTIONS BELOW ANSWER THESE QUESTIONS BELOW.
Score
1. In Part 1 of the field study, you
qualitatively compared images of sea surface temperature data. Discuss how
remote sensing, in this case, was more valuable than other kinds of data
collection, citing at least two ways in which remote sensing was a superior
form of data collection.
Answer:
Score
2. In Part 2 of the field study, you
studied the path of the cloud of gases and other substances spewed by Mount
Pinatubo. Submit your data table and one sample calculation where you
determined the distance traveled by the cloud. Also, submit the graph that you
created of distance of the cloud center over time.
Answer:
3.
In Part 3 of this field study, you determined percentages of land use
around your home. Would you describe the area in your study as diverse? Support
your answer with your data and submit your data table.
Answer:-----------------------------------------
1. Three hypotheses—ecocide, rat
outbreak, and climate change—are candidates as explanations of why the society
of Easter Island collapsed. Explain each hypothesis, present at least one piece
of evidence for each one, and state a lesson that each hypothesis contains for
the world today. For each hypothesis, write one paragraph of at least four
lines
Answer:
Score
2. In a paragraph, describe the
seven steps of the scientific method.
Answer:
Score
3. Error in data analysis often
occurs because the researcher has chosen an inappropriate sample for study—a
sample that does not correctly reflect the characteristics of the population or
phenomenon as a whole. Name at least three different causes of sampling error
and state why each of them can produce invalid data.
Answer:
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SDSU Chemistry Flame Tests for Metals Worksheet
This "lab" will demonstrate how you can identify the presence of various metal cations in an unknown sample by using a tec ...
SDSU Chemistry Flame Tests for Metals Worksheet
This "lab" will demonstrate how you can identify the presence of various metal cations in an unknown sample by using a technique called a Flame Test.It is a good idea to read more about flame test. You can find information on the basis for flame tests and how they are performed at Chem Libre (Links to an external site.) and Wikipedia. (Links to an external site.)The Beyond Labz simulation will get you to perform flame tests on a set of solutions containing known metal ions. You will then perform flame tests on 4 (four) test unknowns to identify which metal is present (there is an opportunity to practice first).To get started, first download the Beyond Labz worksheet for Flame Test experiment. You will need to print this worksheet so that you can fill it in and submit it. Please use this worksheet from Canvas instead of looking in the Beyond Labz software.OK. Now launch the Beyond Labz software, and open the Chemistry Lab.To launch the flame test simulation look at the list of worksheets on the bottom left of the window. Click "Descriptive Chemistry" and then select "Flame Tests for Metals". The lab will then open.Follow the instructions in the Flame Test Worksheet. It is a good idea to read through the entire worksheet first before you begin so that you are aware of what is expected.As you progress through the simulation, fill in data and observations on the worksheet in blue or black ink. No pencil! Even though this is a virtual lab this is good lab practice and also important to make sure your submitted work will be clear enough to grade.To help you get started you can watch a short prelab demo of Beyond Labz that I made as a narrated powerpoint presentation or videoPlay media comment.Update on procedure: August 24th. When you have identified your practice unknown, drag it to the red waste bin. A new practice unknown will then appear in the test rack labeled "unknown" in the stockroom.Preparing and submitting your workAfter you complete the worksheet, take a picture of each completed page or scan them. Make sure the quality is good enough to view clearly. If I cannot read it, I will not grade it.It is best to submit as a PDF or .jpeg (jpg) file. You can submit one file for each page of the table or combine them into one file.Check out free PDF Converter (Links to an external site.) and free PDF Merge (Links to an external site.) tools to convert photos to PDF and combine multiple PDF into one file. SmallPDF (Links to an external site.) also has other free tools for working with PDF files.
Colorado State University Carbon Footprint and Sustainable Living Discussion
Option #1: Carbon Footprint and Sustainable Living PaperIn this laboratory exercise, you will investigate how your daily a ...
Colorado State University Carbon Footprint and Sustainable Living Discussion
Option #1: Carbon Footprint and Sustainable Living PaperIn this laboratory exercise, you will investigate how your daily activities impact the environment. You will calculate your carbon footprint and then determine how you can alter your habits to live a more sustainable life.Complete all sections of the Carbon Footprint and Sustainable Living laboratory exercise, in your Environmental Science Lab Kit from Hands-On Labs, Inc. Fill out all parts of the worksheet. It will not be necessary to submit your original worksheet for this assignment.In a Word document, discuss all parts of this lab activity. Your essay should include the answers to all the worksheet questions. Do not include the original questions. Your answers should be presented in flowing paragraph form. Be sure to include all data tables and graphs from this activity in your paper. Your paper should meet the following requirements:Be 3-4 pages in length (excluding tables, graphs, and other visuals, title page, or references list)Include 1-2 outside sourcesBe formatted according to the CSU Global Writing Center (Links to an external site.).Option #2: Carbon Footprint and Sustainable Living VideoIn this laboratory exercise, you will investigate how your daily activities impact the environment. You will calculate your carbon footprint and then determine how you can alter your habits to live a more sustainable life.Complete all sections of the Carbon Footprint and Sustainable Living laboratory exercise, in your Environmental Science Lab Kit from Hands-On Labs, Inc. Fill out all parts of the worksheet. It will not be necessary to submit your original worksheet for this assignment.In a recorded video of approximately 5-10 minutes, discuss all parts of this lab activity. Your presentation should include the answers to all the worksheet questions. Be sure to show all data tables and graphs from this activity in your video. References and citations should be formatted according to the CSU Global Writing Center (Links to an external site.). and be provided on a separate paper that you turn in. To submit your video itself, please upload it to the web (YouTube, for example) and provide the URL where it can be accessed. Please do not attempt to upload your video directly to the CSU Global classroom.
Field Study: Remote Sensing and science of the environment, Environmental Science Assignment Homework Help
Field Study: Remote
Sensing. DO NOT ANSWER THESE QUESTIONS ONLY UNDERSTAND. Background
This
field study will begi ...
Field Study: Remote Sensing and science of the environment, Environmental Science Assignment Homework Help
Field Study: Remote
Sensing. DO NOT ANSWER THESE QUESTIONS ONLY UNDERSTAND. Background
This
field study will begin with the study of sea surface temperatures off the east
coast of the United States.
Then,
you will analyze a volcanic eruption. Mount Pinatubo’s eruption in 1991 was one
of the world’s largest eruptions in the past 40 years. Located in the
Philippines, the volcano introduced significant amounts of ash and gases into
the atmosphere, enough to cool the temperature of the entire earth slightly
over a period of 3 years.
Part
1: What Do These Images Reveal?
Procedure
1.
From the list of materials for this lesson, click the image titled Gulf
Stream 1. The image may open in a variety of programs. Use the application on
your computer that best shows the image.
2.
Determine what area you are viewing. Some images have an information
legend and key included; others may include geographic clues to the area shown.
Look at the information included with the image. This is an image of the ocean
temperature near the Atlantic coast of the United States, including parts of
the states from North Carolina to New Jersey.
3.
Note that each color in this image represents data. Notice the colors
closer to and farther away from the coastline. What trends do you see?
4.
From the list of materials for this lesson, click the image titled Gulf
Stream 2. Consider the two images of the same general region, but further south
along the coast. These images were taken several days apart in early September
of 1999. What are the substantial differences between them? The first image is
prior to the onset of Hurricane Dennis. The second was taken shortly after the
hurricane.
Part 2: Analysis of Volcanic Eruptions
Procedure
1.
Familiarize yourself with the location of Mount Pinatubo and the
details of the eruption. Use the Internet. Determine the longitude and latitude
of the volcano.
2.
From the list of materials for this lesson, click the image titled
Mount Pinatubo 1. All images that you will open for Mount Pinatubo were taken
after the main eruption of the volcano. Copy or save the first image. Open it
in a program that allows you to zoom in on an image. For the rest of this
exercise, it will be assumed that you are using the Paint program that many
computers have in the accessories folder. You may choose to use a graphics program
or other tool to accomplish the same tasks. For helpful tips on using Microsoft
Paint to view images, see Instructions for Using Paint to Analyze Images.
3.
Compare the images and note how far the cloud
traveled. To do this,
note that the images have a longitude and latitude grid where the
distance
between each pair of longitude or latitude lines represents 10°.
Consider that at different latitudes, 1° of longitude will not cover the
same distance. At the
latitude that you will note for the volcano, the circle of latitude (the
east-west line that circles the earth) has a length that is 96.6% of the
earth’s
circumference (the earth’s circle of latitude at the equator), which is
about
40,075 km. Since there are 360° of longitude, each degree of
longitude is equal to the length of the circle of latitude at that point
divided by 360. For the circle of latitude that passes through the
volcano,
each degree if longitude is equal to 108 km.
4.
Now that you have determined this scale, find the center of the cloud
as best you can. Note what you consider the latitude and longitude of the
center of the cloud. There will be variance between the location you choose as
the center and what others may choose. Additionally, remember that each pixel
is not a point but rather a large square that covers a significant area.
5.
Repeat this procedure for the other satellite images, Mount Pinatubo 2
and Mount Pinatubo 3. Since the cloud seems to be getting larger, it may be
more difficult to determine its center, but use a point that is in the center
of the white area on the image. These images do not have a grid as the first
one did, so you will have to estimate the latitude and longitude to the nearest
degree. Record your results in the table.
6.
Calculate the distance that the center of the cloud traveled from Mount
Pinatubo. Assume that the distance north and south is negligible compared to
the distance to the east and west. This can be calculated easily by determining
the number of degrees longitude the center of the cloud moved and multiplying
the result by 108 km, the number of kilometers in a degree.
Distance Traveled by the Gas Cloud of Mount Pinatubo
Date
Latitude (°)
Longitude (°)
Distance traveled (km)
Position of the volcano
Center of the cloud on
June 16, 1991
Center of the cloud on
June 17, 1991
Center of the cloud on
June 18, 1991
7.
Plot a graph of cloud distance vs. time.
Part 3: Closer to Home
Procedure
1. Download and install Google
Earth. Use the Instructions for Downloading Google Earth to help with the
process.
2.
Note that Google Earth will allow you to view the location where you
live in detail. Perform an analysis of the different types of land usage that
are exhibited. To do this, find an image that is centered on your residence and
save it somewhere you will be able to find it easily.
3.
Open and zoom in on the image until it is pixilated. Microsoft Paint is
a valuable tool for this, though you may use another graphics program for this
analysis. For helpful tips on using Microsoft Paint to view images, see Instructions
for Using Paint to Analyze Images. For your analysis, indicate the size of the
area that you chose to use (for example, 250 pixels × 200 pixels).
4.
Determine the types of land usage in the image. Common land types are
vegetation, roads, streams, and buildings. Feel free to include others as you
need to.
5.
Determine the actual area of a pixel in square meters.
6.
Determine the percentage for each land type in your region.
Land Usage around Your Residence
Land type
Size of area for land type (number of pixels)
Total number of pixels in sample
Percentage
Housing/buildings
Roads
Vegetation
ANSWER THESE QUESTIONS BELOW ANSWER THESE QUESTIONS BELOW.
Score
1. In Part 1 of the field study, you
qualitatively compared images of sea surface temperature data. Discuss how
remote sensing, in this case, was more valuable than other kinds of data
collection, citing at least two ways in which remote sensing was a superior
form of data collection.
Answer:
Score
2. In Part 2 of the field study, you
studied the path of the cloud of gases and other substances spewed by Mount
Pinatubo. Submit your data table and one sample calculation where you
determined the distance traveled by the cloud. Also, submit the graph that you
created of distance of the cloud center over time.
Answer:
3.
In Part 3 of this field study, you determined percentages of land use
around your home. Would you describe the area in your study as diverse? Support
your answer with your data and submit your data table.
Answer:-----------------------------------------
1. Three hypotheses—ecocide, rat
outbreak, and climate change—are candidates as explanations of why the society
of Easter Island collapsed. Explain each hypothesis, present at least one piece
of evidence for each one, and state a lesson that each hypothesis contains for
the world today. For each hypothesis, write one paragraph of at least four
lines
Answer:
Score
2. In a paragraph, describe the
seven steps of the scientific method.
Answer:
Score
3. Error in data analysis often
occurs because the researcher has chosen an inappropriate sample for study—a
sample that does not correctly reflect the characteristics of the population or
phenomenon as a whole. Name at least three different causes of sampling error
and state why each of them can produce invalid data.
Answer:
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