Volume Analysis Lab Report Results
In this lab, there was a comparison between accuracy and precision of densities measured by volume. Mass measurements are often used units in the metric system. Volume can be examined a borrowed unit. The volume measurements were made in mL. Every measurement had a level of hesitancy affiliated with it. The experiment could feel uncertain from the object used for measurement and from the accuracy of the person doing the measuring of the volume. Because of this uncertainty, the experiment must be repeated for better precision. The following results and data show the calculation of the density of three liquids: water, rubbing alcohol, and vinegar; each substance was tested three times to determine the average density observing the rules of significant
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figures. Each group worked together and came out with the results and recorded the given data. Each liquid that was being experimented was placed in a pipet and was measured on a balance. It was then recorded in three different tables. The experiment shows a more precise calculation of density because it was tested in three trials. At the beginning of each trial, the experiment was repeated and completely starting the experiment over. The mass was recorded in grams and the volume was recorded with the group's evaluation with direct eye contact. At the end of all three trial, the average density was recorded. It is necessary to obtain more than one results for precision rather than accuracy.
Background Information:
The density of a substance is the amount of matter obtained in the volume of the substance.
The density of an object is often measured in grams per milliliter. The density of water is 1.00 g/mL. To measure the density of the substance it was placed on a balance to measure how many grams it is then divided that number by its volume. The volume is the amount the substance takes up in the given space. Different liquids have different densities even if the substances take up the same amount of volume space. For example, if one cup of water was poured into a glass, and the same amount of oil was to pour, what would happen? Would both substance mix? No, the oil will rise to the top because oil is less dense than water. A wooden boat could float in the ocean; but, try taking a rock and placing it on the surface of the water. Usually, rocks are denser than water which is why rocks to sink to the bottom of the surface. Two substances or object could carry similarities in mass but different densities. Accuracy vs. Precision is a major part of this lab experiment. It mainly focuses on the precision reasoning of better calculation measurements. Accuracy shows how well the results of a measurement agree with the accepted value. The unlikeness between the actual correct measurement and the experimental result is very much narrowed. Precision is the degree of exactness of a measurement. It depends on the materials and technique chosen to take the
measurement.
figures. Each group worked together and came out with the results and recorded the given data. Each liquid that was being experimented was placed in a pipet and was measured on a balance. It was then recorded in three different tables. The experiment shows a more precise calculation of density because it was tested in three trials. At the beginning of each trial, the experiment was repeated and completely starting the experiment over. The mass was recorded in grams and the volume was recorded with the group's evaluation with direct eye contact. At the end of all three trial, the average density was recorded. It is necessary to obtain more than one results for precision rather than accuracy.
Background Information:
The density of a substance is the amount of matter obtained in the volume of the substance.
The density of an object is often measured in grams per milliliter. The density of water is 1.00 g/mL. To measure the density of the substance it was placed on a balance to measure how many grams it is then divided that number by its volume. The volume is the amount the substance takes up in the given space. Different liquids have different densities even if the substances take up the same amount of volume space. For example, if one cup of water was poured into a glass, and the same amount of oil was to pour, what would happen? Would both substance mix? No, the oil will rise to the top because oil is less dense than water. A wooden boat could float in the ocean; but, try taking a rock and placing it on the surface of the water. Usually, rocks are denser than water which is why rocks to sink to the bottom of the surface. Two substances or object could carry similarities in mass but different densities. Accuracy vs. Precision is a major part of this lab experiment. It mainly focuses on the precision reasoning of better calculation measurements. Accuracy shows how well the results of a measurement agree with the accepted value. The unlikeness between the actual correct measurement and the experimental result is very much narrowed. Precision is the degree of exactness of a measurement. It depends on the materials and technique chosen to take the
measurement.