Lab technique and measurments

Measuring techniques and calculations lab report

Use the electronic balance in the weigh room to determine the mass of the same Erlenmeyer flask. Volumetric measurements were the basis of the 3rd part of the experiment. Density is also an intensive property. Note that when measuring liquid volumes, it is important to read the graduated scale from the lowest point of the curved surface of the liquid, known as the liquid meniscus. All measuring devices are subject to error, making it impossible to obtain exact measurements. Carefully add all the aluminum pellets to the water, making sure not to lose any water to splashing. The brass cylinder is about an inch and a half in length, 4mm in diameter with sawed-off edges. I will be using laboratory dilutions, measurements, and weights to then calculate using algebraic formula. Determine the new combined mass of both the beaker and the sugar. It started with measuring length. As we all know, if the volume is off, the density calculation will be off. If it is a cylinder or cone, measure its height and the diameter of its circular base. Chemistry is the study of matter. Analysis: Use these measurements along with the density of aluminum to calculate the thickness of the foil. Our understanding of chemical processes thus depends on our ability to acquire accurate information about matter.

Return the block or cylinder and ruler to the front bench when finished. In this lab, you will be introduced to some common measuring devices, and learn how to use them to obtain correct measurements, each with correct precision. The king did not know whether or not his crown was truly made of gold.

What conclusions can you reach from your simple density analysis?

hol laboratory techniques and measurements

You may have instead estimated it as 1. Another key learning aspect of this lab is to teach the student how to measure properly the many units in the SI system. It is golden with stain spots in color, and smells metallic.

That would mean the material is not dense enough to be gold. The units for solid volumes are typically cubic centimeters cm3 or cubic meters m3.

Measurement lab report

Purpose: The purpose of this lab is to learn laboratory techniques and to how to measure precisely. Another key learning aspect of this lab is to teach the student how to measure properly the many units in the SI system. For example, the density of a gold coin and a gold statue are the same, even though the gold statue consists of the greater quantity of gold. The next part of the experiment was measuring temperature. In part B, this cylinder and its most accurate reading were then used to find the density of a known metal by first finding the mass of the metal using the balance to its most accurate reading. An extensive property is one that is dependent on the amount of matter present. Students will also learn how to dilute substances by using simple algebra.

Using the Archimedes Principle you find that the volume is 0.

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1: Measurements in the Laboratory (Experiment)