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Laboratory Techniques and Measurements Essay

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Below is an essay on "Laboratory Techniques and Measurements" from Anti Essays, your source for research papers, essays, and term paper examples.

Laboratory Techniques and Measurements
Purpose:
The purpose of this experiment is to learn common techniques used in the lab and how to properly find measurements.
Procedure:
First, I found the length in mm, cm and m for a CD, Key, spoon, and fork.
Second, I found temperatures in °C, °F, and K of 100-mL of water.
Third, I found the mass of various everyday objects such as coins, a key, and a pen.
Fourth, I found the volume and density of water and isopropyl alcohol.
Fifth, I found the volume and density of solids, a magnet.
Sixth, I found density of solids using water displacement.
Seventh, I found density of solids using Archimedes’ Principle.
Eighth, and last, I found molecular weight of sugar and diluted it.
Data Tables and Observations:

Data Table 1: Length measurements. |
Object | Length (cm) | Length (mm) | Length (m) |
CD or DVD | 5.2 | 52.0 | .052 |
Key | 12.0 | 120.0 | .120 |
Spoon | 18.6 | 186.0 | .186 |
Fork | 21.0 | 210.0 | .210 |

Data Table 2: Temperature measurements. |
Water | Temperature (°C) | Temperature (°F) | Temperature (K) |
Hot from tap | 46 | 114.8 | 319.15 |
Boiling | 100 | 212 | 373.15 |
Boiling for 5 minutes | 100 | 212 | 373.15 |
Cold from tap | 18 | 64.4 | 291.15 |
Ice water – 1 minute | 0 | 32 | 273.15 |
Ice water – 5 minutes | 0 | 32 | 273.15 |

Data Table 3: Mass measurements. |
Object | Estimated Mass (g) | Actual Mass (g) | Actual Mass (kg) |
Pen or pencil | 5 | 5.4 | .0054 |
3 Pennies | 6 | 7.6 | .0076 |
1 Quarter | 5 | 5.7 | .0057 |
2 Quarters, 3 Dimes | 15 | 18.2 | .0182 |
4 Dimes, 5 Pennies | 15 | 21.6 | .0216 |
3 Quarters, 1 Dime, 5 Pennies | 25 | 31.9 | .0319 |
Key | 10 | 9.2 | .0092 |
Key, 1 Quarter, 4 Pennies | 20 | 24.9 | .0249 |

Data Table 4: Liquid measurements. |
| | Mass A | Mass B | Mass B - A | | |
Liquid | Volume(mL) | GraduatedCylinder (g) | GraduatedCylinderwith liquid (g) | Liquid (g) | Densityg/mL | % Error |
Water | 5 | 15.8 | 20.6 |...

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"Laboratory Techniques and Measurements". Anti Essays. 10 Dec. 2018

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APA Citation

Laboratory Techniques and Measurements. Anti Essays. Retrieved December 10, 2018, from the World Wide Web: http://parimatchstavki7.com/free-essays/Laboratory-Techniques-And-Measurements-599557.html