Aim - To investigate how the temperature of water affects how salt dissolves. Prediction - If the temperature is warmer, the more solute will dissolve in the solude. Variables - which variables are you going to: Independent Variable - The temperature of the water. Dependent variable - How much salt is needed to not dissolve in water. Controlled variables - The materials. How will you make it a fair test? - Using a machine to weight the salt and heat the water.…
Standard solution is the solution that is been made by dissolving a precise mass of reactant meaning the starting substance in a chemical reaction, and it is important that the mass is weighed accurately into distinguish volume of water that will be used. This tells us that if the concentration of standard solution is accurate then it can also be used to work the concentration of a different solution that it can also react with. Its concentration is generally given in mol dm-3. Standard solution…
When confronted with an obstacle, the easiest and the most efficient way to achieve a resolution is always the most desired; however, when assessing the act of fracking, it may be one hole that should not be drilled. Fracking is the process of using hydraulic machinery to access oil and gas in areas of the Earth’s crust that are otherwise hard to retrieve. Where there are some benefits to using this system, the consequences of fracking are far more catastrophic to our environment. Ethically,…
Observations or reactions: Separation of the basic component: When 2ml of 3M HCl was added to the mixture of Benzoic acid, Ethyl 4-aminobenzoate, 9-Fluorenone, diethyl ether, two layers were created, an organic yellow top layer and a clear aqueous bottom layer. The clear layer (basic layer) was extracted and placed into a container where 6M NaOH was add to the solution. The addition of NaOH made the solution basic, and created white flakes in the solution. The white flakes were separated by…
think that this means for crystallizations in general (since ice is crystallized water)? Crystallization is the physical transformation of substances like liquid, therefore, the water undergoes a physical transformation from water to crystallized water. These two are both the same substance; they are just in a different physical state (liquid to solid). Furthermore, this proves crystallization occurs as substances change from one state to another. Did you observe about how much of the ice…
that sucrose shows a soluble component which physical appearances results to be more crystal in nature and bonded together during the first separation. The separation of dichloromethane and sodium hydroxide reveal two layers of different density liquids solution whereby one is denser in nature than the other solution. The dense solution is referred to as the sodium hydroxide while the bottom layer which occurs to be less dense is referred to as the dichloromethane. One of the components of…
To change solid agar into liquid, get 4 Petri dishes out and ready for use. Next, agar needs to be a boil, either on heating pot or stove, not in a microwave. Agar bottle needs to be placed inside the pot, with water in it to be a boil. Water level needs to be right under the label on the agar bottle, with the cover losing, or it will explode. Agar needs to be boil for about 30 to 45 minutes, until agar liquefied. Then pour agar inside the petri dish, about half full. Make sure agar is fully…
The molar heat of vaporization of n-heptane for the rising T and falling T sets of data was 26.10 kJ/mol . This is the energy required to transform a given amount of n-heptane from a liquid into a gas at a certain pressure. In both table 1 and 2, the vapor pressure was gradually increased as the temperature increased. Also, the vapor pressure was decreased as the temperature decreased. This means that the data values that obtained from this experiment were true values. The isoteniscope method…
Fracking has large impact on daily life for global consumers, it effects prices and availability of fuels for consumers. Fracking is an exceptionally complicated process. To start the process, a ten thousand foot well is drilled below the surface into shale layers. Next, 1 to 8 million gallons of water mixed with chemicals are injected into the well at extremely high pressures to crack the rock. This will allow the product to flow out once the water is mostly removed. This process is highly…
….. Of Life, Taker of Souls People say that the eyes are the windows to the soul, if only they that really meant. If someone is lying, looking a person in they eye will allow to to see right through them. If a person is hurt, sad, or even heart broken, all you have to do is make eye contact to know what they are feeling. The same is for people who are are in love, happy, and glad. The eyes show and see all. But this is only a small part of what I can see when I look someone in the eyes.…