Melting point

Investigative Question Does sugar or salt effect the freezing point and period of time that water takes to freeze? Hypothesis If you add either sugar or salt to water it will affect the freezing point of the water and will therefor take longer to freeze. Aim The aim of the project is to prove whether or not adding sugar and salt to water will affect the freezing point of the water and will therefor take longer to freeze. Variables Independent Variables: the independent variables are the amount…

The freezing point of the cyclohexanol was about 17.7°C, and the freezing point for the unknown solute mixed into the cyclohexanol was about 6.2°C. So the approximate change in temperature of the two freezing points was about 11.5°C. With this calculated information, the found molar mass of the unknown solute B was about 278.4g/mol, which is close to given molar mass of octadecanol. Conclusion- This lab allowed us to determine the molar mass of the unknown solute B by finding the difference in…

The Freezing point of water is 32° fahrenheit, But does anything affect the freezing point of water? The effect of salt and sugar lowering water’s freezing point is called Freezing Point Depression(FPD). When water freezes, its molecules slow down and “stick” together, and eventually slow down so much they stay in place and become a solid. However when salt or sugar is added, it “interferes with the formation of the crystalline bonds between water molecules that give ice its solidity”, Written…

During this lab, I compared the properties of both regular and light margarine, before and after melting. First, we took both of the margarine samples and put them in a hot water bath to melt them. This separated out the components within them- making it easy to measure their percentage value. I found the regular margarine to be made up of 14.5% solids, 64.2% oils, and 21.3% water. Next, I used the same method as before, and found the percentage of each component of the light margarine to…

experiment, I know the ice cubes melted within seconds of each other at 2 minutes 3 seconds and 2 minutes 10 seconds. During the melting process, I watched the temperature gradually drop to 80 degrees. Once the ice cubes completely melted, the water appeared uniformly light blue. Lastly, I repeated steps five-seven and the results were nearly the same with slight temperature/melting time…

can freeze and stop the machine while you are using it. Now, for your ice-cream base. Remember, this is the fundamental mixture that you need to make a perfect ice cream. To make a perfect ice cream base: • The basic ratio to make a heavenly base is 2-8 yolks for 3 cups of dairy product. Adjust a number of egg yolks according to your desire. If you want a lighter base, decrease cream and yolks then put more milk. If you want a richer mixture, do the opposite. Yolks enhance the texture of…

General procedure: One equivalent of spacer was coupled using 2.4 equivalents of inhibitor, 0.18 equivalents of copper sulfate, 0.36 equivalents of (+)-sodium-L-ascorbate, in a mixture of 10% H2O in DMF, 24 mL/mmol spacer. The mixture was placed in the microwave for 30 minutes at 80oC Pro6 Spacer (10) (30 mg, 0.036 mmol) and 18 (36 mg, 0.087 mmol) were dissolved in 778 µL DMF. Copper sulfate (1.62 mg, 0.006 mmol) and sodium-L- ascorbate (2.57 mg, 0.013 mmol) were dissolved in 86 µL H2O. The two…

It’s a hot, summer day and a soda is the perfect thing to quench your thirst. You come inside and notice they are all at room temperature. What would be the fastest way to cool a soda? There are multiple factors that could effect in this equation. Would it be faster to put it in the refrigerator where the cold air would achieve the soda’s desired temperature, would ice cool it faster, or maybe an ice and water bath would do the trick? There are multiple ways to test this experiment, but only one…

It was a cold day in Taco Town, everyone was staying inside because of the weather. it was so cold outside the taco sauce river had froze and that has never happened before because it was made from the hottest of all sauces. the mayor of Taco Town was worried that the people would soon start to freak out about the river freezing over and wanted to make a statement to the town. the river was the main source of flavor in the town it made everything so much better, it also provided warmth to the…

You can lay concrete during the winter; however, you need to be careful. Here are a few precautions that you need to take while laying concrete during cold weather. #1 Never Lay Concrete On Frozen Ground The key to laying concrete during the winter time is to never lay it when the ground is frozen or on top of snow or ice. When you lay concrete on frozen ground, the coldness will transfer to the concrete and will slow down the drying process. Additionally, when the ground thaws, it will…