Density report
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School
Southeastern Louisiana University *
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Course
123
Subject
English
Date
Jan 9, 2024
Type
Pages
6
Uploaded by SuperHumanAlpacaPerson940
CLAB 123 (revised Spring 2023) 63 Experiment 3: Density Report Sheet
Name: Section: Date: Disclaimer: your instructor may have you submit your report online or assign an alternate one. Part A: Density by Graduated Cylinder DATA
Fill in this table with the data from your notebook. Be sure to include proper significant figures.
Trial 1 Trial 2 Trial 3 Mass of Empty Erlenmeyer Flask + Stopper (g) Volume of Water Measured using the Grad. Cylinder (mL) Mass of Erlenmeyer Flask + Stopper + Water (g) Mass of Water (g) Temperature: ________ ℃
Accepted Density of Water (from Table 1): ___________ g/mL Part A: Density by Graduated Cylinder ANALYSIS
Fill in this table with the post-lab calculations from your notebook. Be sure to use proper significant figures. For the shaded boxes, show your work below the table including units and your unrounded values, indicating where each should be rounded with an underline.
Trial 1 Trial 2 Trial 3 Density of Water (g/mL) Average Density (?
)
Deviation (?
?
= ?
− ?
?
)
Squared Deviation
(?
?
)
2
Sum of Squares 𝑆?? ?? 𝑆??𝑎???
? − 1
Standard Deviation % RSD % Relative Error
64 Show your work/calculations for Part A trial 1 density of water
: Show your work/calculations for Part A trial 1 deviation
: Show your work/calculations for Part A Sum of Squares/(n-1):
Show your work/calculations for Part A % Relative Error
:
CLAB 123 (revised Spring 2023) 65 Part B: Density by Buret DATA
Fill in this table with the data from your notebook. Be sure to include proper significant figures.
Trial 1 Trial 2 Trial 3 Mass of Empty Erlenmeyer Flask + Stopper (g) Initial Volume of Buret (mL) Final Volume of Buret (mL) Mass of Erlenmeyer Flask + Stopper + Water (g) Mass of Water (g) Volume of Water in Flask (mL) Part B: Density by Buret ANALYSIS
Fill in this table with the post-lab calculations from your notebook. Be sure to use proper significant figures. For the shaded boxes, show your work below the table including units and your unrounded values, indicating where each should be rounded with an underline.
Trial 1 Trial 2 Trial 3 Density of Water Average Density (?
)
Deviation (?
?
= ?
− ?
?
)
Squared Deviation
(?
?
)
2
Sum of Squares 𝑆?? ?? 𝑆??𝑎???
? − 1
Standard Deviation % RSD % Relative Error
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66 Show your work/calculations for Part B trial 1 density of water
: Show your work/calculations for Part B trial 1 deviation
: Show your work/calculations for Part B Sum of Squares/(n-1):
Show your work/calculations for Part B % Relative Error
:
CLAB 123 (revised Spring 2023) 67 Part C: Density of Solids DATA
Fill in this table with the data from your notebook. Be sure to include proper significant figures.
Metal Rod Rock Plastic Block Unknown Designation Mass of Rod (g) Dimension 1 of object (cm) (list dimension used or N/A) ( ) ( ) ( ) Dimension 2 of object (cm) (list dimension used or N/A) ( ) ( ) ( ) Dimension 3 of object (cm) (list dimension used or N/A) ( ) ( ) ( ) Initial Volume of Water in Grad. Cylinder or N/A (mL) Final Volume of Water in the Grad. Cylinder or N/A (mL) Part C: Density of Solids ANALYSIS
Fill in this table with the post-lab calculations from your notebook. Be sure to use proper significant figures. For the shaded boxes, show your work below the table including units and your unrounded values, indicating where each should be rounded with an underline.
Metal Rod Rock Plastic Block Volume of Object by geometry (or N/A) (cm
3
) Volume of Object by displacement (or N/A) (mL) Density of object using V
geometry
(or N/A) (g/mL) Density of object using V
displace
(or N/A) (g/mL) Show your calculations for Part C metal rod volume by geometry
:
68 Show your work/calculations for Part C metal rod volume by displacement
: Show your work/calculations for Part C metal rod density by geometry
: Show your work/calculations for Part C metal rod density by displacement
: Questions: For questions involving calculations, show your work including units, unrounded and rounded values. 1)
Look at your results from Parts A and B. Using the calculations you made, which glassware was more precise? You should defend your choice by stating which calculation(s) you used to decide and why. 2)
Look at your results from Parts A and B. Using the calculations you made, which glassware was more accurate? You should defend your choice by stating which calculation(s) you used to decide and why.
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