Lab Report: Calibration of Volumetric Glassware
Calibration of Volumetric Glassware
Nur Farah Nabilah Binti Ahmed Zhaini
Muhammad Imanuddin Bin Azman
Maisarah Binti Alias
Summary
In this experiment, The purpose of this experiment is to investigate the measurement of the actual volume contents of volumetric glassware. In the beginning of the experiment, the volumetric glassware should be clean and dry before used. The volumetric glassware, measuring cylinder and pipette should be handled with care and all the precautions were be taken during the experiment was held. This was to ensure to avoid any errors such as parallax error especially while reading water meniscus. This experiment must be repeated three times or more and take the average reading to get more accurate data. By using the formulae, the standard deviation and relative standard deviation could be calculated. As the result, the lower the standard deviation, the higher the consistency of an instrument. Although the instrument may measure a given sample, the value might need to be altered due to various conditions and errors.
Objectives
The objective of the experiments was to;
Calibrate a 10 mL volumetric pipette.
Calibrate a 25 mL volumetric pipette.
Calibrate a 100 mL volumetric flask.
Calibrate a 50 mL measuring cylinder
Introduction
Volumetric glassware is used to accurately measure volumes. Despite all of the tools and instruments available for the use of measuring values of various data, it is impossible to measure the true value of anything. This experiment is intended to develop a person’s capacity to handle volumetric glassware. One must understand how to handle volumetric glassware to acquire the best possible data from the equipment used in lab. Although the instrument may measure a given sample, the value might need to be altered due to various conditions. However, with practice and experience, we can reach very close to the true value, gaining the ability to measure with
Nur Farah Nabilah Binti Ahmed Zhaini
Muhammad Imanuddin Bin Azman
Maisarah Binti Alias
Summary
In this experiment, The purpose of this experiment is to investigate the measurement of the actual volume contents of volumetric glassware. In the beginning of the experiment, the volumetric glassware should be clean and dry before used. The volumetric glassware, measuring cylinder and pipette should be handled with care and all the precautions were be taken during the experiment was held. This was to ensure to avoid any errors such as parallax error especially while reading water meniscus. This experiment must be repeated three times or more and take the average reading to get more accurate data. By using the formulae, the standard deviation and relative standard deviation could be calculated. As the result, the lower the standard deviation, the higher the consistency of an instrument. Although the instrument may measure a given sample, the value might need to be altered due to various conditions and errors.
Objectives
The objective of the experiments was to;
Calibrate a 10 mL volumetric pipette.
Calibrate a 25 mL volumetric pipette.
Calibrate a 100 mL volumetric flask.
Calibrate a 50 mL measuring cylinder
Introduction
Volumetric glassware is used to accurately measure volumes. Despite all of the tools and instruments available for the use of measuring values of various data, it is impossible to measure the true value of anything. This experiment is intended to develop a person’s capacity to handle volumetric glassware. One must understand how to handle volumetric glassware to acquire the best possible data from the equipment used in lab. Although the instrument may measure a given sample, the value might need to be altered due to various conditions. However, with practice and experience, we can reach very close to the true value, gaining the ability to measure with
References: * http://gula-gulakapassikecik.blogspot.com/2012/04/calibration-of-volumetric-glassware_24.html?m=1 * www.studymode.com * Lim Peng Chew, Lim Ching Chai, Nexus Bestari Physics, Sasbadi Sdn. Bhd. , 2013, Pg 18,19