This colligative property is important in many industries, but is clear to see when using ordinary salt to remove ice from steps or a driveway. The water takes salt into solution, which in turn lowers the freezing point of the water, ensuring that even sub-freezing ambient temperatures do not lead to ice buildup anywhere the salt or ice melt was applied. Experimental Procedure: Before any measurements were taken, equipment was set up and calibrated. Using Microlab’s integrated calibration file the thermistor was calibrated in order to obtain accurate temperature measurements. A graph for the data was also set up with time on the x axis in .5 second intervals and temperature on the y axis.
Mason, OH: Thompson. Jennings, M. M. (2006). Managing Disputes: Alternative Dispute Resolution and Litigation Strategies (7th ed.) Chapter 7. Mason, OH: Thompson.
hoSpecific heat capacity in liquids Specific heat capacity in liquids How do liquid filled radiators work and what are the useful properties of these liquids? Liquid-filled electric radiators are sealed units that have an internal heating element that releases heat through the outer case; however the elements are put in a liquid such as: oil, water or heat transfer agent. Depending on the design of the radiator, the heat generated can be through radiation or a combination of radiation and convection (1). (10) (10) The liquid used is anti-freeze which is made up of ethylene and propylene glycol (13). Ethylene glycol is mixed with water so it is 50% of each liquid in the solution and has the highest boiling point than any other radiator fluid (5); its boiling point is 197.3°C and has a melting point of -12.9°C (12).
During the process of TIG welding, an arc is formed between a pointed tungsten electrode and the area to be welded. As a result of the gas shield, a clean weld is formed. This prevents oxidization from occurring. The arc is started with a tungsten electrode shielded by inert gas and filler rod is fed into the weld puddle separately. A slower process than MIG, it produces a more precise weld and can be used at lower amperages for thinner metal and can be used on exotic metals.
(C) – Character set. 7. (D) – The binary equivalent of decimal 123456789. 8. (A) – An actuator arm.
Melting point- Approximately half a spatula of each solid was placed in its own test tube. Using a test tube clamp, the test tubes containing the solids were gently heated one by one. Always remembering to keep the test tube moving in order to prevent overheating any one spot and pointing the mouth of the test tube away from yourself and others to avoid any unnecessary accidents. If the solid melts easily, record your results as low melting. If it does not melt, increase the time in the flame.
White Matter 2. Gray Matter 3. Myelinated fibers 4. Unmyelinated fibers
This technique can be used with aluminum cans but only after removing the exterior paint and the interior plastic coating. Alum is a chemical used in a myriad of applications including water purification, marble cement, explosives, tanning, hardening gelatin, baking powders, clarifying sugar, hardening plaster casts, and as a medicinal astringent. In this experiment, you will produce alum from an aluminum can in a multi-step synthesis reaction summarized by equation 1. You will then purify the alum through a process called recrystallization and
Thermal decomposition of carbonates Introduction: Carbonates decompose when they are heated, producing calcium oxide and carbon dioxide. Carbon dioxide can be detected using lime water. Calcium carbonate calcium oxide + carbon dioxide CaCO3 CaO + CO2 Other metal carbonates decompose in the same way. Here are the equations for the thermal decomposition of copper carbonate: copper carbonate copper oxide + carbon dioxide CuCO3 CuO + CO2 Hypothesis: some metal carbonates decompose more easily than others when they are heated. Aim: The times taken for a chemical reaction to take place metals high up in the reactivity series (such as calcium) have carbonates that take a lot of energy to decompose them.
When the gas comes out of the ground, it comes out wet. The first stage of the refining process involves on-site heating of the gas to 212 degrees to evaporate any non-methane hydrocarbons and fluids that are mixed into the gas. (Arthur, 2008) The condensate that is generated from this process is then vented into the atmosphere. The condensate often contains the same chemical additives that are added to the well during the fracking process, as well as volatile organic compounds that are naturally occurring in the ground where the gas is stored (Witter,