Remove the quart bag, open it and place the ice cream into cups with spoons and eat it. Explanation of the Science Behind this Experiment: This experiment is an example of freezing point depression. Ice melts when it absorbs energy so it can change from a solid to a liquid. On the contrary, when salt is added to the ice, it lowers the freezing point of the ice. That means that in order for the ice to melt, it needs to absorb even more energy.
Being, if hot and cold water were combined, then the cold water would move beneath the hot water because cold water is denser than hot water. Methods Materials: - Small glass bowl - Ice - Cold water - Food coloring - Spoon - Clear glass cup - Hot water - Clear medicine dropper Procedure: 1. First, in the glass bowl, mix the ice, cold water, and food coloring with the spoon 2. Next, fill the glass cup with hot water 3. Now, using the
Self-Design Lab Rubric Name(s): Cassidy Gale Redding TITLE: The Affect Different Liquids have on Dry Ice’s CO2 Release I. DESIGN: How long does it take a piece of dry ice to sublimate in different liquids? Background Theory: Dry ice is the solid form of CO2, therefore it sublimates instead of melts. Sublimation is a solid turning into a gas instead of a liquid. When placed in water, dry ice reacts by sublimating faster because of the added temperature.
This effect was created by adding water to a beaker of dry ice. When water comes in contact with dry ice (which is actually pure carbon dioxide), it forms little carbon dioxide bubbles that rise up to the surface, creating the effect of fizzy soda. When it reaches the top, a reaction occurs between the carbon dioxide and the air which makes the water in the bubbles very cold and creates a thick fog. This is what makes the dense smoke that pours out of the dry ice beaker. We also learned that dry ice is very cold and can burn you, so it is important to handle them with gloves or tongs.
We also used ice to see whether unknown compound will dissolve in the ice. We used 3ml of ice and 0.5 g of unknown and 1-gram sodium carbonate and 1g unknown carbonate in 10 ml H20. when we first mixed ice with unknown it melts then we used sodium carbonate and unknown carbonate it forms white precipitate. for the final test we used 1-gram sodium bicarbonate and unknown with 15 ml of H20 then it bubbles up. After we done with all other test, we like to see the PH of the sodium bicarbonate and unknown, its initial temperature is 20 and the final temperature was 24 and then PH paper turn blue and its has the PH of 8-9 and its very
Did you know you can turn sodium acetate into “hot ice”? It is exactly what happens within a chemical heating pack! Inside that pack, along with water, is a solution that has more sodium acetate that can normally be dissolved at room temperature. Sodium acetate is the sodium salt of acetic acid. This solution is called a saturated solution because it contains the maximum amount of sodium acetate that can be dissolved without heating the solution (1).
The candle, acting like the inner core was heating up the liquid inside the jar, acting like the asthenosphere and its particles. The liquid posing as the particles were being heated and rising up because the molecules were getting less dense. When it reached the top the molecules fall again because they get cold and less dense. In the “Density Reading” it stated that cold water sinks because it is more dense and compacted. The particles start hitting the top of the lithosphere.
In order to determine the value of X, the hydrate is heated on a burner to undergo decomposition reaction to be decomposed into CuSO4 and water vapor. Water vapor is evaporated during the reaction, leaving CuSO4 crystals, which is supposed to be white, in remain. By weighing the mass of CuSO4 and the mass difference of substance before and after the reaction, the mole of CuSO4 and H2O can be calculated. The value of X can thus be determined by calculating the mole ratio of CuSO4 and H2O. In the lab, through calculation, the value of X is determined to equal to 5.361211229, which is close to 5.
We are completing this research project to understand how our favorite past time treat can have a more scientific background and how heat flows from a warmer object to a cooler object. As aforementioned thermodynamics deals with a lot of forms of energy, so in this case we would be using chemical. The goal of this project is to observe the thermodynamic process whi8ch will ultimately lead to the creation of ice cream. In this group assignment we are conducted to test how thermodynamic