The objective of this lab was to identify physical properties as well as chemical and physical changes. This was done by first observing and recording the physical properties of seven different materials. The materials were: Sulfur (S), Iron fillings (Fe), Sodium bicarbonate (NaHCO3), Sucrose (C12H22011), Sand (SiO2), Magnesium (Mg), and Sodium chloride (NaCl). Those seven materials were then placed in a 24 well plate in small quantity’s and the physical properties were recorded. Sulfur was founded to be a powder with a yellow color and insoluble in water. Iron fillings were black, attracted to a magnet and insoluble. Sodium bicarbonate was found as a crystal solid with a white color and was insoluble. Sucrose was a crystal solid with a while …show more content…
Magnesium was a solid with a shinny black color and was insoluble. Sodium chloride was a solid crystal with a white color and was soluble.Then each substance was tested using a magnet. After the magnet test, each substances solubility was tested by using 3ML of water. Next Iron fillings (Fe) were combined with Sulfur (S) and tested using a magnet. The Iron fillings where attracted to the magnet and took some of the sulfur with it. A five centimeter strip of Magnesium (Mg) was placed in a fire and burned with the ashes being collected and placed in a test tube. When burned the Magnesium burned with white light and became brittle white ash. Another 1 centimeter strip of Magnesium (Mg) was then placed in a test tube along with 11 drops of 3M Hydrochloric acid. The Magnesium smoked up and the temperature increased. The ashes from the already burned strip were also combined with 11 drops of 6M Hydrochloric acid. The ashes slightly warmed but no other reaction took place. Next a pea sized around of Sodium bicarbonate (NaHCO3) was placed in a test tube along with five drops of 6M Hydrochloric acid. The Sodium bicarbonate bubbled and temperature loss …show more content…
The all however related to the chemical and physical propitious of different substances. Many different materials and types of equipment were used in this experiment. Knowledge of what chemical and physical properties were used to answer the many questions A physical property is a property that does not change the chemical nature of that substance. Examples of physical properties are color, smell, freezing point, boiling point, melting point, infra-red spectrum, attraction (paramagnetic) or repulsion (diamagnetic) to magnets, opacity, viscosity and density A chemical property is a property is a that does change the chemical nature of that substance. Some examples are heat of combustion, reactivity with water, PH, and electromotive force. The purpose of this experiment was to find the physical and chemical properties of many different substances. The physical and chemical properties of: Sulfur (S), Iron fillings (Fe), Sodium bicarbonate (NaHCO3), Sucrose (C12H22O11), Sand (SiO2), Magnesium (Mg) and Sodium chloride (NaCl) were all recored. While observations where made about: Iron fillings mixed with Sulfur with and without a magnet, Magnesium both burnt and unburnt, Magnesium (ash and unburnt) mixed with Hydrochloric acid, Sodium bicarbonate with Hydrochloric acid, burned Sucrose and its solubility, Sodium chloride mixed with sand and
The purpose for this lab was to use aluminum from a soda can to form a chemical compound known as hydrated potassium aluminum sulfate. In the lab aluminum waste were dissolved in KOH or potassium sulfide to form a complex alum. The solution was then filtered through gravity filtration to remove any solid material. 25 mLs of sulfuric acid was then added while gently boiling the solution resulting in crystals forming after cooling in an ice bath. The product was then collected and filter through vacuum filtration. Lastly, crystals were collected and weighed on a scale.
The primary goal of this laboratory project was to identify an unknown compound and determine its chemical and physical properties. First the appearance, odor, solubility, and conductivity of the compound were observed and measured so that they could be compared to those of known compounds. Then the cation present in the compound was identified using the flame test. The identity of the anion present in the compound was deduced through a series of chemical tests (Cooper, 2009).
A: The reaction with water and vinegar was the most useful in this experiment. The physical properties were very self explanatory because the texture of the powders was all different expect icing sugar and cornstarch. Also the Ph levels were very similar of six and seven for corn starch and icing sugar respectively. d) Q: How confident do you feel about your identification of the
The purpose of conducting experiment was to determine the identity of white compound. Based on the 5 gram of unknown white compound several experiment conducted including solubility test, pH test, flame test, and ion test. Several materials including chemicals used throughout experiment and will be described through paragraphs.
3. The beaker was filled with water and the metal was placed in the water.
The procedure of the lab on day one was to get a ring stand and clamp, then put the substance in the test tube. Then put the test tube in the clamp and then get a Bunsen burner. After that put the Bunsen burner underneath the test tube to heat it. The procedure of the lab for day two was almost exactly the same, except the substances that were used were different. The
We began this investigation by suiting up in lab aprons and goggles, we then gathered our materials, found a lab station and got to work. We decided to start with the magnesium in hydrochloric acid first, we measured out 198.5 L of HCl and put it in the foam-cup calorimeter and took initial temperature reading. We then selected a piece of magnesium ribbon and found its mass: 0.01g. This piece was placed in the calorimeter and the lid was shut immediately to prevent heat from escaping. We “swirled” the liquid mixture in the calorimeter to ensure a reaction, and waited for a temperature change. After a few moments, the final temperature was recorded and DT determined.
In my team’s investigation, we were trying to figure out four unknown powders based on the known powders we had. Our research question was, how do different chemicals change the color of the flame. First in the experiment, we prepared our lab space by making sure we had a clear countertop and had a beaker full of water ready for the hot splint to be dumped into. We all put our hair back and put our goggles on and then proceeded to turn the Bunsen burner on. After we put the Bunsen burner on, Mr. Young adjusted our flame and we sent someone to grab the first chemical to burn. We burnt chemicals on the wooden splint one after one observing the color the flame produced, recording the color, and proceeded to put the splint in the water afterwards.
To put it another way, properties are what make up an object, and substance is what the
Solid A was identified to be sodium chloride, solid B was identified to be sucrose, and Solid C was identified to be corn starch. Within the Information Chart – Mystery White Solid Lab there are results that distinguishes itself from the other 4 experimental results within each test. Such as: the high conductivity and high melting point of sodium chloride, and the iodine reaction of corn starch. Solid A is an ionic compound due to its high melting point and high electrical conductivity (7), within the Information Chart – Mystery White Solid Lab there is only one ionic compound which is sodium chloride, with the test results of Solid A, it can be concluded that is a sodium chloride. Solid B was identified as sucrose due to its low electrical
The purpose of performing this lab was to find the specific heat capacity of an unknown metal.
By exposing the chocolate and the cookies before the light and heat of the 60-watt light bulb, the students will be able to progressively observe the process of the material melting and make records at every stage of the experiment. Using the 15 seconds step, the students can identify the melt temperature and time of the chocolate under the lab conditions as well as make and analyze their records in the final part of the experiment. The experiment is expected to establish, which of the chocolates and cookies melt faster, and make conclusions about the influence of the consumables ingredients on their physical properties. This corresponds with the TEK 112.11 (5B) procedure, which allows students to “observe, record, and discuss how materials can be changed by heating or
Aim: The aim of this experiment was to determine the empirical formula of magnesium oxide.
Conclusion This experiment was set out to find the effect of different temperatures of hydrochloric acid on the rate of reaction with magnesium. The information recorded was then interpreted and compared to the hypothesis. From this information, a conclusion can be made to show that the rate of reaction relates to temperature in the reaction between hydrochloric acid and magnesium. In conclusion, as proven in this experiment, the higher the temperature of hydrochloric acid, the faster the reaction it has with magnesium.
borate) and 1.0 g. of sodium hydroxide in 20 mL of warm water. It may