Graduated Cylinder Volume

5. RESULTS&DISCUSSION

A. Ruler

Scale: | Accuracy | Precision | Metric unit side | 0.01 | 0.001 |

Object | | Measure in | | | | Centimeter (cm) | Meter (m) | Inch(in) | Yard(yd) | Stirring rod: Length | 300.50cm | 3.005m | 12in | 0.33yd | Lab. Manual: Length | 271cm | 2.71m | 10.20in | 0.28yd | Lab. Manual: Width | 208cm | 2.08m | 8.60in | 0.24yd |

B. Graduated Cylinder

Volume reading when graduated cylinder is half filled with | (mL) | Potassium permanganate(KMnO4) | 12.6mL | Distilled Water (H2O) | 12.3mL |

| Capacity of Apparatus (maximum volume contained) | Big test tube | 18.8mL | 250-mL Beaker | 50mL |

C. Pipette

Pipettes | Drawing of a part of the scale | Accuracysmallest known value | Precisionfirst uncertain digit value | Sample Measurement made | 10mL | | .00 | 1 | 0.001 | 1 mL | | .0 | 2 | 0.02 |

D. Thermometer

Data | Temperature in ºC | Temperature in ºF | Experimental B. in pt. of water | 91ºC | 195.8ºF | Corrected B.pt. | 25.29ºC | 77.52ºF |

Object | Weight in Grams (g) | Weight in milligrams (mg) | Five peso coin | 7.6g | 0.0076mg | Watch glass | 24.2g | 0.0242mg | 250-mL capacity Beaker | 110.6g | 0.1106mg | E. DENSITY OF LIQUIDS

Wt. of empty graduated cylinder = 66.7g
Wt. of graduated cylinder + 5.0mL cottonseed oil
= 71.3g
Wt. of graduated cylinder + 5.0 cottonseed oil + 10.0mL water
= 80.5g

| Weight (g) | Volume (mL) | Calculated Density(g/mL) | Percent error | Water | 11.2g | 10mL | 1.12g/mL | | Cottonseed | 70.5g | 5.0mL | 14.1g/mL | |

6. CONCLUSION

We conclude that measuring is very important, every time you will conduct an experiment. In measuring we can accurately give the measurement of an object like, length of the table its width and height. We can also give the accurate volume of a liquid needed to an experiment. For example, we needed 5mL of potassium permanganate. Now to get its volume