The purpose of lab 1.1 Heating Baking Soda is to observe the baking soda as it is heated, the test tube, and the apparatus. Then to determine what happens to baking soda when it is heated. There are three parts to the experiment the empty test tube test, the heating baking soda test, and the tea test. To determine the effect of heating baking soda heated baking soda is compared to two different controls to isolate the properties of baking soda when it is heated. Then to determine that baking soda causes gas to be produced when heated
The Empty test tube test provides a control for the heating baking soda test; it shows what reactions happen when the test tube is heated with the apparatus attached. During the test the apparatus is set up and
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the test tube is heated. Once heated extremely small liquid droplets form at the bottom of the test tube then move upward to the top of the test tube then disappeared. Then small bubbles came out of the black tubing inside the collection bottle to form a two centimeter sized bubble. Therefore when a test tube is heated there is expected to be a tiny amount of moisture inside the test tube and a small amount of gas that is produced that empties into the collection bottle The Heating baking soda test is the main part of lab 1.1 heating Baking Soda. It is done to determine what happens when baking soda is heated. To do this the apparatus is set up with 0.5 centimeters of baking soda in the test tube. Then the bottom of the test tube is heated at which point large water droplets form at the top of the test tube. Simultaneously large amounts of bubbles come out of the black tubing inside the collection bottle. The unknown gas collects in the bottle and fills it three-fourths full. Since gas is collecting in the bottle there is a significant rise in water level in the plastic tub. Concluding that heating baking soda causes an unknown liquid to be produced, an unknown gas to be produced, and a white powder was left in the bottom of the test tube. The Tea test is designed to give information about what happens to the baking soda after it is heated. During this test the same amount of baking soda that was heated is put into a new test tube. Then both test tubes are filled with a quarter tube of liquid tea and stirred. After both test tubes have been equally stirred the heated baking soda is darker in color than the unheated baking soda when looked at both vertically and horizontally. The heated baking soda is also completely dissolved opposed to the unheated baking soda which is just sitting in the test tube underneath the tea barely dissolved. Therefore since the liquids have unlike properties the heated baking soda can't have the same properties as the unheated baking soda, so the heated baking soda must be a new substance. When baking soda is heated an unknown gas, an unknown liquid, and a new substance is produced.
The Empty test tube test is a control of the heating baking soda. The test is done to see the reactions that occur when an empty test tube is heated, so it is known what reactions occur because of the baking soda and what reactions because of the heating test tube. This is why it is known that an unknown gas is produced as baking soda is heated because when the baking soda is heated in the heating baking soda test the void in the collection bottle increases and the water level in the plastic tub rises more than it did in the heating empty test tube test. Therefore if the apparatus system is without a leak as baking soda is heated an unknown gas is produced out of the baking soda to fill the collection bottle. An unknown liquid is also produced when the baking soda is heated. This is another difference seen in between the heating baking soda test and the empty test tube test. When the empty test tube is heated there is very small liquid droplets that form inside on the top of the test tube but when baking soda is heated very large liquid droplets form. Therefore the liquid that is seen in the heating baking soda test that is not seen in the empty test tube test must have been produced from the baking soda. After the baking soda is heated in the heating baking soda test the unknown white powder that remains in the test tube is no longer baking soda. This is known because during the …show more content…
tea test the unknown white powder and baking soda are separately mixed with liquid tea. Once they are mixed together the two liquids in the test tubes exhibit different properties including color and dissolving rate. Therefore the two liquids cannot be identical nor can the white powders meaning that the unknown white powder is not baking soda. Therefore concluding that when baking soda is heated the white powder in the bottom of the test tube cannot be baking soda, and an unknown liquid and an unknown gas is produced. Now that it is known what happens to baking soda when it is heated it is possible to find out why baking soda is used in baking, and how to compare amounts of solids, liquids, and gases.
And to find out what the three substances left in the experiment
are. Although this experiment would have to be repeated a number of times to know that the results are consistent? To make sure that there are no leaks in the apparatus, or that nothing got contaminated during this experiment. Therefore it is known that when baking soda is heated a solid unknown white powder is left as well as an unknown gas is produced with an unknown liquid that is also produced. Therefore baking soda is used in baking because the unknown gas that is produced helps baked goods rise, the unknown liquid keeps the baked goods moist, and the unknown solid gives flavor.
Compress the safety bulb, hold it firmly against the end of the pipette. Then release the bulb and allow it to draw the liquid into the pipette.
5. A second test tube was then filled with water and placed in a test
Tubing to connect flask to gas collection set up 1000 mL graduated cylinder Gas collection box Baking soda Vinegar Water Balance Scoop Procedure 1.Mass out desired amount of baking soda.
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
For this experiment, you will add the measured amount of the first sample to the measured amount of the second sample into its respectively labeled test tube then observe if a reaction occurs. In your Data Table, record the samples added to each test tube, describe the reaction observed, if any, and whether or not a chemical reaction took place.
In this experiment, we tested how the sugar cubes dissolve from different water temperatures. During the lab we made sure to make accurate and precise measurements, so what we did was do the same exact procedure to every section of the lab.
2. Put the test tube inside a beaker for support. Place the beaker on a balance pan. Set the readings on the balance to zero. Then measure 14.0g of KNO3 into the test tube.
After the water, has been boiling for 10 minutes, and the temperature inside the test tube has been stable for 5 minutes, record the temperature and remove the thermometer.
In our Biology Lab we did a laboratory experiment on fermentation, alcohol fermentation to be exact. Alcohol fermentation is a type of fermentation that produces the alcohol ethanol and CO2. In the experiment we estimated the rate of alcohol fermentation by measuring the rate of CO2 production. Both glycolysis and fermentation consist of a series of chemical reactions, each of which is catalyzed by a specific enzyme. Two of the tables substituted some of the solution glucose for two different types of solutions. They are as followed, Table #5 substituted glucose for sucrose and Table #6 substituted the glucose for pH4. The equation for alcohol fermentation consists of 6 Carbons 12 Hydrogens 6 Oxygen to produce 2 pyruvates plus 2 ATP then finally the final reaction will be 2 CO2 plus Ethanol. In the class our controlled numbers were at Table #1; their table had 15 mL Glucose, 10 mL RO water, and 10 mL of yeast which then they placed in an incubator at 37 degrees Celsius. We each then measured our own table’s fermentation flasks every 15 mins for an hour to compare to Table #1’s controlled numbers. At
When you mix baking soda and vinegar you get what’s called a chemical reaction. A chemical reaction is the process by which one or more substances change to produce one or more different substances (blue book). In this case, you would be mixing an acid and a base. The tw...
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
Discussion: In the experiment of enzyme kinetics, inhibition and concentration of substrate were investigated. The effect of these two factors will be determined through an experiment of four different concentrations of the inhibitor, and five different concentrations of substrate. Figures 2, 3, 4, and 5 provide an observation for the change in absorbance with time in the presence of different concentrations of inhibitor, and in the absence of inhibitor (phosphate).
The actual, theoretical, and percent yield of sodium chloride was found. Sodium Carbonate was mixed with hydrochloric acid and the liquid was boiled until there was nothing left. The result was the production of salt, or sodium chloride.
The rate of any reaction is exponentially related to the concentration of reactants. This lab investigated the reaction of potassium iodate and sodium bisulfite. The experiment was done in order to determine the order of the reaction. Ten trials were done in which ten wells were filled with ten drops of sodium bisulfite with a constant concentration while various concentrations of ten drops of potassium iodate were added to each well of sodium bisulfite. The dilutions of potassium iodate were done in ten wells as well. The first well was filled with a maximum of ten drops of potassium iodate and decreased by one drop for each consecutive well until only one drop was in the last well. For the distilled water, the first well which was filled
One of the most important things in caliometry is the caliometer. This is a device used to measure the quantity of heat in a reaction. There are many different types of caliometers, some are used to measure the heat capacity of materials, and others measure the aspects the heat generates by new or untested reactions, heat of combustion and burn rates. One type of caliometer is reaction caliometers. These measure heat energy released or absorbed during a reaction that occurs inside the caliometer. Bomb caliometer are used to measure heat of combustion of a particular reaction. Differential scanning caliometers heat flow into a sample is usually measured differentially. A popular caliometer used in biochemistry is called the isothermal titration caliometer. In this caliometer the heat of the reaction is used to follow a titration experiment. It is used in biochemistry because it t facilitates determination of substrate binding to enzymes. Other caliometers that are sometimes used are x-ray micocaliometer, and high-energy particle caliometer. These two caliometers are not as often used, but can still be included in the different types. It is apparent that there are many different types of caliometers and some are used more commonly than others