NOTES:

Experiment #1- Find the Density of Various Liquids

1. Water 

Mass of empty graduated cylinder: 54.000g 

Mass of graduated cylinder with 10 mL of water: 64.000g

Mass of graduated cylinder with 10 ( more) mL of water: 74.000g

Current total volume is 20.00 mL

Followed by an additional 10 mL of water in graduated cylinder: 84.000g ----Total current volume: 30.00 mL

2. Ethanol 

Mass of empty graduated cylinder: 54.000g

Mass of graduated cylinder with 10 mL of ethanol: 61. 893g 

Mass of graduated cylinder with 10 ( additional) mL of ethanol: 69.786 

Current total volume is: 20.00 mL

Followed by an additional 10 mL of ethanol in graduated cylinder: 77. 679 

Total current volume: 30.00 mL

Experiment #2- Identify an Unknown Liquid 

Mass of empty graduated cylinder : 54.000g

Mass of graduated cylinder with 10 mL of unknown liquid: 65.100

Mass of graduated cylinder with 10 ( additional) mL of unkown liquid: 76.200 g 

Total current volume: 20. 00 mL 

Followed by an additional 10 mL of unknown liquid in graduated cylinder: 87.300 

Total current volume: 30.00 mL 

Experiment #3-Fiind the Density of Various Metals

IRON

Mass of graduated cylinder with 30 mL of water: 84.000g

Total volume: 30.00 mL 

A. When 5.000 g of Iron is added to graduated cylinder mass is : 89.000 g

Total volume becomes: 30.64 mL 

B. When 5.000 g of Iron is added a 2nd time to graduated cyldinder mass is: 94.000 g

Total volume becomes: 31.27 mL 

C. When 5.000 g of Iron is added a 3rd time to graduated cylinder mass is: 99.000 g

Total volume becomes: 31.91 mL 

D. When 5.000 g of Iron is added a 4th time to graduated cylinder mass is: 104.000 g 

Total volume becomes: 32.54 mL 

E. When 5.000 g of Iron is added a 5th time to graduated cylinder mass is: 109.000 g 

Total volume becomes: 33. 18 mL 

ALUMINUM 

Mass of graduated cylinder with 30 mL of water: 84.000 g 

Total volume: 30.00 mL 

A. When 5.000 g of Aluminum is added to graduated cylinder mass is 89.000 g

Total current volume becomes: 31.85 mL 

B. When 5.000 g of Aluminum is added a 2nd time to graduated cylinder mass is: 94.000 g

Total volume becomes: 33.70 mL 

C. When 5.000 g of Aluminum is added a 3rd time to graduated cylinder mass is: 99.000 g

Total current volume becomes: 35.56 mL 

D. When 5.000 g of Aluminum is added a 4th time to graduated cylinder mass is: 104.000 g 

Total current volume becomes: 37.41 mL 

E. When 5.000 g of Aluminum is added a 5th time to graduated cylinder mass is: 109.000 g 

Total current volume becomes: 39.26 mL 

Experiment #4- Identify an Unknown Metal 

Mass of graduated cylinder with 30.00 mL of water is: 84.000 g 

Total volume is 30.00 mL. 

When 10.000 g of an unknown metal (Metal #1) is added to graduated cylinder mass is: 94.000 g 

Total current volume becomes: 31.40 mL 

METAL #1 

A. When 5.000 g of Metal #1 is added to graduated cylinder mass is: 99.000 g 

Total current volume becomes: 32.10 mL 

B. When 5.000 g of Metal #1 is added to graduated cylinder a 2nd time mass is: 104.000 g

Total current volume becomes: 32.80 mL 

C. When 5.000 g of Metal #1 is added to graduated cylinder a 3rd time mass is: 109.000 g 

Total current volume becomes: 33.50 mL

D. When 5.000 g of Metal #1 is added to graduated cylinder a 4th time mass is: 114.000 g 

Total current volume becomes: 34.20 mL 

E. When 5.000 g of Metal #1 is added to graduated cylinder a 5th time mass is: 119.000 g

Total current volume becomes: 34.90 mL

 

Please need help answering these below: 

Abstract (5 points)

[Instruction: One paragraph (~75 – 100 words) summarizing the purpose of the experiment, statement/sentence describing the method of measurement, primary findings and their significance.]

The purpose of this experiment was to identify the physical property of matter. I used a graduated cylinder, balance, water, iron, aluminum, and an unknown metal. Mass and volume measurements were taken to calculate the density of liquids and matter.

 

 

 

Introduction (15 points)

[Instruction: A ~2 paragraph full section including a detailed description of the physical or chemical effect explored through the experiment, a description of the exact physical or chemical systems that were studied, theory or competing theories associated with the experiment, physical and chemical relevance and applications, a non-technical description of the measurement method (but not a technical description of the experimental design – that belongs in the next section!). Equations should be limited to introducing or explaining critical primary relationships and terminology.]

 

 

 

 

Experimental Methods (10 points)

[Instruction: A brief ~2 paragraph technical overview of the experimental apparatus and a past tense technical description of experimental procedures. The latter should be given in paragraph form, communicate what was performed, but not as a moment-by-moment recount of your lab activity (and not copied verbatim from the lab manual).]

 

 

 

 

 

 

Results/Analysis (25 points)

[Instruction: Organize and communicate your results that have been recorded in the Lab Notes section of the Late Nite Labs lab session, with appropriate graphical and tabular presentation, and describe calculations needed to derive and interpret your numeric results and their error. As the report is a written document, use text to describe analysis procedures, indicate what is presented in figures and tables, and to comment on or point out notable trends.

 

For example: In Experiment 1 of this lab, you took measurements for three volumes of water. A table may be an appropriate way to present the data you collected during the experiment.

 

Remember to pay attention to significant figures and record all masses and volumes with all the decimals provided by the lab.]

 

 

 

 

 

Discussion (40 points)

[Instruction: A multi-paragraph section that accomplishes the following:

• Restates your primary numeric results from the results/analysis section.
• Puts your results in context by responding in paragraph form to the calculations in the Short Answer Questions in this section.
• Discuss any possible sources of error in your experiment and put them in context with your results.
• Complete the Short Answer Questions in this section.]   

 

• Discussion (20 pts.):

 

 

 

 

 

 

 

 

• Short Answer Questions (20 pts.):

 

Experiment 1: Find the Density of Various Liquids

 

Q1: In this experiment, you took measurements for three volumes of water. Use the data you collected during the experiment to calculate the quantities in the table below. In this experiment, the volume is your least precise measurement, containing fewer significant figures than the mass. Therefore, the density can only be as precise as the volume. (1 pts.)

 

Q2: In this experiment you took measurements for three volumes of ethanol. Use the data you collected during the experiment to calculate the quantities in the table below. Please note that in this experiment the volume is your least precise measurement containing fewer significant figures than the mass. Therefore, the density can only be as precise as the volume. (1 pts.)

 

Experiment 2: Identify an Unknown Liquid

 

Q3: In this experiment you took measurements for three volumes of unknown liquid. Use the data you collected during the experiment to calculate the quantities in the table below. Please note that in this experiment the volume is your least precise measurement containing fewer significant figures than the mass. Therefore, the density can only be as precise as the volume. (2 pts.)

 

Q4: Which liquid in the table below is most likely your unknown liquid? (1 pt.)

           

 

Experiment 3: Find the Density of Various Metals

 

Q5: For each of the iron measurements, use the data you collected during the experiment to calculate the quantities in the table below. Remember to pay attention to significant figures and record all masses and volumes with all the decimals provided by the lab. Please note that in this experiment the volume is your least precise measurement containing fewer significant figures than the mass. Therefore, the density can only be as precise as the volume. (2 pts.)

 

Q6: For each of the aluminum measurements, use the data you collected during the experiment to calculate the quantities in the table below. Remember to pay attention to significant figures and record all masses and volumes with all the decimals provided by the lab. Please note that in this experiment the volume is your least precise measurement containing fewer significant figures than the mass. Therefore, the density can only be as precise as the volume. (2 pts.)

 

Q7: Create and save a graph of mass (y-axis) versus the volume (x-axis) for iron. If you do not know how to create a graph in Microsoft Word, this YouTube video at https://youtu.be/OCWF-g5POj4 may help. (2 pts.)

 

 

 

 

Q8: Create and save a graph of mass (y-axis) versus the volume (x-axis) for aluminum. If you do not know how to create a graph in Microsoft Word, this YouTube video at https://youtu.be/OCWF-g5POj4 may help. (2 pts.)

 

 

 

 

 

 

 

 

Experiment 4: Identify an Unknown Metal

 

Q9: For each of the unknown metal measurements, use the data you collected during the experiment to calculate the quantities in the table below. Remember to pay attention to significant figures and record all masses and volumes with all the decimals provided by the lab. Please note that in this experiment the volume is your least precise measurement containing fewer significant figures than the mass. Therefore, the density can only be as precise as the volume. (2 pts.)

 

Q10: Which metal in the table below is most likely your unknown metal? (1 pt.)

 

Q11: Given that the density of glycerol is 1.261 g/mL, how much will 15.00 mL of glycerol weigh? Please show your calculation steps. (2 pts.)

 

 

 

 

Q12: Why do you think it is important to record your data with all the decimals provided by the instruments even if they are zero? How will this help with data analysis? (2 pts.)

 

 

 

 

 

 

Conclusions (5 points)

[Instruction: A final paragraph that summarizes the following: your numeric findings; comparisons to literature values and theory; a summarizing conclusion about the most significant sources of experimental error for your experiment; what the primary experimental results reveal about the physical or chemical properties or effects examined and significance to physical or chemical applications.]

 

Student Name

Lab Title

Date of Completion of Lab Experiment

 

 

Abstract (5 points)

[Instruction: One paragraph (~75 – 100 words) summarizing the purpose of the experiment, statement/sentence describing the method of measurement, primary findings and their significance.]

The purpose of this experiment was to identify the physical property of matter. I used a graduated cylinder, balance, water, iron, aluminum, and an unknown metal. Mass and volume measurements were taken to calculate the density of liquids and matter.

 

 

 

Introduction (15 points)

[Instruction: A ~2 paragraph full section including a detailed description of the physical or chemical effect explored through the experiment, a description of the exact physical or chemical systems that were studied, theory or competing theories associated with the experiment, physical and chemical relevance and applications, a non-technical description of the measurement method (but not a technical description of the experimental design – that belongs in the next section!). Equations should be limited to introducing or explaining critical primary relationships and terminology.]

 

 

 

 

Experimental Methods (10 points)

[Instruction: A brief ~2 paragraph technical overview of the experimental apparatus and a past tense technical description of experimental procedures. The latter should be given in paragraph form, communicate what was performed, but not as a moment-by-moment recount of your lab activity (and not copied verbatim from the lab manual).]

 

 

 

 

 

 

Results/Analysis (25 points)

[Instruction: Organize and communicate your results that have been recorded in the Lab Notes section of the Late Nite Labs lab session, with appropriate graphical and tabular presentation, and describe calculations needed to derive and interpret your numeric results and their error. As the report is a written document, use text to describe analysis procedures, indicate what is presented in figures and tables, and to comment on or point out notable trends.

 

For example: In Experiment 1 of this lab, you took measurements for three volumes of water. A table may be an appropriate way to present the data you collected during the experiment.

 

Remember to pay attention to significant figures and record all masses and volumes with all the decimals provided by the lab.]

 

 

 

 

 

Discussion (40 points)

[Instruction: A multi-paragraph section that accomplishes the following:

• Restates your primary numeric results from the results/analysis section.
• Puts your results in context by responding in paragraph form to the calculations in the Short Answer Questions in this section.
• Discuss any possible sources of error in your experiment and put them in context with your results.
• Complete the Short Answer Questions in this section.]   

 

• Discussion (20 pts.):

 

 

 

 

 

 

 

 

• Short Answer Questions (20 pts.):

 

Experiment 1: Find the Density of Various Liquids

 

Q1: In this experiment, you took measurements for three volumes of water. Use the data you collected during the experiment to calculate the quantities in the table below. In this experiment, the volume is your least precise measurement, containing fewer significant figures than the mass. Therefore, the density can only be as precise as the volume. (1 pts.)

 

Q2: In this experiment you took measurements for three volumes of ethanol. Use the data you collected during the experiment to calculate the quantities in the table below. Please note that in this experiment the volume is your least precise measurement containing fewer significant figures than the mass. Therefore, the density can only be as precise as the volume. (1 pts.)

 

Experiment 2: Identify an Unknown Liquid

 

Q3: In this experiment you took measurements for three volumes of unknown liquid. Use the data you collected during the experiment to calculate the quantities in the table below. Please note that in this experiment the volume is your least precise measurement containing fewer significant figures than the mass. Therefore, the density can only be as precise as the volume. (2 pts.)

 

Q4: Which liquid in the table below is most likely your unknown liquid? (1 pt.)

           

 

Experiment 3: Find the Density of Various Metals

 

Q5: For each of the iron measurements, use the data you collected during the experiment to calculate the quantities in the table below. Remember to pay attention to significant figures and record all masses and volumes with all the decimals provided by the lab. Please note that in this experiment the volume is your least precise measurement containing fewer significant figures than the mass. Therefore, the density can only be as precise as the volume. (2 pts.)

 

Q6: For each of the aluminum measurements, use the data you collected during the experiment to calculate the quantities in the table below. Remember to pay attention to significant figures and record all masses and volumes with all the decimals provided by the lab. Please note that in this experiment the volume is your least precise measurement containing fewer significant figures than the mass. Therefore, the density can only be as precise as the volume. (2 pts.)

 

Q7: Create and save a graph of mass (y-axis) versus the volume (x-axis) for iron. If you do not know how to create a graph in Microsoft Word, this YouTube video at https://youtu.be/OCWF-g5POj4 may help. (2 pts.)

 

 

 

 

Q8: Create and save a graph of mass (y-axis) versus the volume (x-axis) for aluminum. If you do not know how to create a graph in Microsoft Word, this YouTube video at https://youtu.be/OCWF-g5POj4 may help. (2 pts.)

 

 

 

 

 

 

 

 

Experiment 4: Identify an Unknown Metal

 

Q9: For each of the unknown metal measurements, use the data you collected during the experiment to calculate the quantities in the table below. Remember to pay attention to significant figures and record all masses and volumes with all the decimals provided by the lab. Please note that in this experiment the volume is your least precise measurement containing fewer significant figures than the mass. Therefore, the density can only be as precise as the volume. (2 pts.)

 

Q10: Which metal in the table below is most likely your unknown metal? (1 pt.)

 

Q11: Given that the density of glycerol is 1.261 g/mL, how much will 15.00 mL of glycerol weigh? Please show your calculation steps. (2 pts.)

 

 

 

 

Q12: Why do you think it is important to record your data with all the decimals provided by the instruments even if they are zero? How will this help with data analysis? (2 pts.)

 

 

 

 

 

 

Conclusions (5 points)

[Instruction: A final paragraph that summarizes the following: your numeric findings; comparisons to literature values and theory; a summarizing conclusion about the most significant sources of experimental error for your experiment; what the primary experimental results reveal about the physical or chemical properties or effects examined and significance to physical or chemical applications.]

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