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Measuring the Density of Ball Bearings

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Measuring the Density of Ball Bearings
Measuring the Density of Ball Bearings/ Density
Aaysha Dawood
Chem 1211L-198
September 7, 2012

Procedure:
The procedure for this lab was taken from the lab manual below:
Block/McKelvy (2012). Laboratory Experiments for Chem 1211L & 1212L Cengage Learning (7th ed.), p. 5-19 (Measuring the Density of Ball Bearings/Density).
No changes occurred that were different from the procedure listed above.
Data: Measuring the Density if Ball Bearings | Ball 1 | Ball 2 | Ball 3 | Ball 4 | Diameter [cm] | 2.50 cm | 1.97 cm | 1.66 cm | 1.25 cm | Mass [g] | 66.6982 g | 28.1675 g | 16.3009 g | 8.3504 g |

Area [cm2] | 19.63 cm2 | 12.19 cm2 | 8.66 cm2 | 4.91 cm2 |

Volume [cm3] | 8.18 cm3 | 4.00 cm3 | 2.40 cm3 | 1.02 cm3 |

Data: Density Aluminum Cylinder | Mass of aluminum cylinder | 17.1420 g | Height of aluminum cylinder | 5.00 cm | Radius of aluminum cylinder | .635 cm | Final buret reading | 10.20 ml | Initial buret reading | 0.0 ml | Volume of water delivered | 10.20 ml | Calibration mark on gradated cylinder touched by meniscus | 16.5 ml |

Sand | Mass of graduated cylinder plus sand | 28.3548 g | Mass of empty graduated cylinder | 10.6440 g | Mass of sand | 17.7108 g | Final buret reading | 20.20 ml | Initial buret reading | 10.20 ml | Volume of water delivered | 10 ml | Calibration mark on graduated cylinder touched my meniscus | 17 ml |

Table salt | | Mass of graduated cylinder plus table salt | 24.4168 g | Mass of empty graduated cylinder | 9.9965 g | Mass of table salt | 14.4203 g | Final buret reading | 30.20 ml | Initial buret reading | 20.20 ml | Volume of water delivered | 10.2 ml | Calibration mark on graduated cylinder touched by meniscus | 15.8 ml |

Table salt plus alcohol | Mass of graduated cylinder plus table salt | 24.6094 g | Mass of empty graduated cylinder | 10.5981 g | Mass of table salt | Could not be determined | Volume of alcohol delivered from pipet |
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