Apparatus INTRODUCTION Density is defined as mass per unit volume. The commonly used unit to indicate the density of water is (g/cm3). Water never has an absolute density because its density varies with temperature. Water has its maximum density of 1 g/cm3 at 4oC. When the temperature changes from either greater or less than 4oC‚ the density will become less than 1g/cm3 only when it is pure water. Other factors that can affect water’s density whether it is tap water‚ fresh water or
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C. How would you explain a sand recovery percentage that is higher than the original sand percentage? D. What were potential sources of error in this experiment? A.) The methods I proposed were highly similar to the instructions used in the labpaq manual. Just as stated in the instructions‚ I would have used the magnet to separate iron fillings‚ but I would have thought lastly upon
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Submitted: November 29‚ 2012 Experiment No. 1 Group No./Time/Day: 3 / 12NN-3PM/Thurs MEASUREMENT‚ ERRORS AND DENSITY I. Objective: a. To know the principles of good measurement and to compare the precision and accuracy of some commonly used measuring devices. b. To study the types‚ causes and effects of errors in measurement. c. To determine the density of solids by direct measurements. II. Experimental Set up: d. Apparatus/Materials: i. Ruler calibrated
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LAB 1 – THE SCIENTIFIC METHOD *Adapted from LabPaq CK-GCC Purpose: The purpose of this experiment is to learn about and use the Scientific Method. The discussion of physical properties such as density‚ color‚ texture‚ smell‚ and solubility will take place. Observations and Experimental Data: Table 1: Making Observations Procedure Observation A. Torn paper Vertical tear: easier to tear‚ more visible fibers‚ more jagged edges and uneven tear. Horizontal tear: harder to tear‚
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factor. In this experiment‚ the group was able to classify the causes of such errors and which measuring device is more precise and accurate than the other. These were obtained by measuring the diameter of an iron sphere with several trials made by each member of the group using measuring devices such as the Foot Rule‚ the Vernier Caliper and the Micrometer Caliper. The group found out that in measuring‚ both the Vernier Caliper and the Micrometer Caliper are preferable to use for these can give more
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objects float in water where as others sink? Hypothesis- I think the objects that have a greater density than water will sink. So whichever object has a density more than 1g/cm³ will sink in water. This is known as relative density where the density of the substance is compared to the density of water. Hence‚ the object that has a greater mass: volume ratio than water will sink. Materials- * 1 measuring cylinder * 1 rectangular prism * 1 ball of plasticine * 1 cylinder * 1 cube
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added to the water for the egg to float. The reason why I think three teaspoons of salt will need to be added to water for the egg to float is because the egg a density that is lower than the density of the salt water. Background information Density and buoyancy are the main scientific reasons for the egg floating in the salt water. Density is the measure of how tightly packed matter is (Buller‚ 96). For this
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Chemistry Lab Report Purpose The purpose of this lab is to determine the identity of an unknown liquid by measuring its density and its boiling point and try to match it with those solutions given in Table 2 of experiment 2. Procedure Part A In Part A‚ The main purpose was to find the determination of the density of the unknown (j41) and by doing that we had to determine volumes of the unknown liquid (j41) using three different volumetric devices which are graduated cylinder‚ pipette
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ABSTRACT The densities of several liquid and solid samples were determined as an exercise in measurement. Density‚ being an inherent and intensive property of a substance‚ was also used to determine the identity of an unknown liquid sample. Proper procedures on measurement were observed in order to determine the mass‚ volume‚ and density of the samples. Four liquid samples were used namely water‚ isopropyl alcohol‚ coconut oil‚ and an unknown liquid sample. The experimental density values were measured
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results that have been obtained in exactly the same way while accuracy indicates the closeness of the measurement to its true value. This experiment was used to determine the accuracy and precision of different volumetric measuring devices‚ as well as determining the density of an unknown metal. This lab was to help understand the application to volumetric measurements. Part 1: First‚ the next-to-smallest beaker was cleaned‚ dried‚ and weighed on the scale where it’s mass was determined. The
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