Flammable liquid

Sharpie permanent markers contain n-propanol (C3H8O) n-butanol (C4H10O), and Diacetone alcohol (C6H12O2). These markers are generally used on hard, non-porous surfaces, because instead of damaging the surface they form a surface layer that can be removed easily by solvents such as acetone (C3H6O), xylene (C8H10), or toluene (C7H8). Acetone (strong chemical used in nail polish remover) is a strong and very effective against permanent markers. It can also remove paint and melt certain surfaces.…

The optimum dental treatment for any patient is to restore teeth function and esthetic while removing the least amount of tooth structure, and replacing it with a dental material that will be biocompatible with the tooth and resist the hostile oral environment. Dental materials are incorporated into the teeth structure by retention. This retention can accomplished through mechanical, chemical adhesion or bonding mechanisms between materials and the dental structure. Mechanical retention is…

there. The volume of liquid in the beaker before the egg was placed in was 150 mL, and when the egg was taken out, the volume decreased to 130 mL. This proves that some of the distilled water that was in the beaker passed through the cell membrane and into the egg, which explains why the mass of the mass increased, while the volume of water decreased. The distilled water didn’t have any minerals or gunk that prevented it from going through the cell membrane easily, while the liquid that was in…

If you are looking for ways to reduce your energy bill this winter, you should look into insulating your electric water heater. An uninsulated water heater loses heat, which can impact your overall energy costs, especially during the winter months when it is colder. Here is what you need to do in order to insulate your electric water heater. #1 Clean Your Heater The first thing you need to do is remove any items that you have stored in or around your water heater. You'll want a clear work…

Abstract: The purpose of this lab was to show the different absorption and emission rates of three different substances. Radiation laws, albedo, and specific heat are all reasons why this is achievable. An agreed upon hypothesis is that the sand will absorb the most heat due to the number of molecules, the moss will absorb the second most because it doesn't have as many molecules as sand, but it has more than water, which isn’t as complex. To complete this experiment, you need three beakers of…

are destroyed. ____ 14. The melting point of water is 0°C. Its boiling point is 100°C. The thermometers show the temperature of four samples of water. Which statement is true? A Only sample B is solid. B All four samples are liquid. C Only samples A and C are liquid. D None of these ____ 15. Hailey is investigating changes in the states of matter. Wearing safety gloves and goggles, she is heating a pan of water on a hot plate. She observes water vapor beginning to rise from the surface of…

OVERVIEW Four ablations will be done in ex vivo bovine for each flow rate. There will be three different flow rates: 0 mL/min, 860 mL/min, and 1000 mL/min. These flow rate were chosen based on hepatic flow rates of humans in the supine position (Brown et al. 1989; Leen et al. 1992). Each ablation will be performed at 40 watts for 2 minutes for a total of 12 ablations. The average area of a 30ºC and 50 ºC contour at the end of the ablation will be used to characterize the size of the ablation…

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 cup. 12)Carefully place your egg in the cup and allow it to sit for 24 hours. 13)Hypothesize what you think will happen to the size of the egg. Day 3: 1)Carefully remove the egg from the cup and place it in the weigh boat tray. 2)Pour the liquid down sink and clean out beaker with soap and water. 3) Observe the appearance of the egg and record observations in a data table as after egg was placed in syrup. 4)Measure the mass of the egg in grams. Record this number in a data table.…

viscous because their molecules aren't held strongly together by dipole-dipole bonds. Polar molecules such as water and ethanol are more viscous because they are held more strongly together by dipole-dipole--and in these molecules case--hydrogen bonds. Liquids that are hydrocarbons can also be more viscous because they have longer carbon chains. For example, hexane has much less carbons than mineral oil and is therefor much less viscous. It seems that intermolecular bonds in hydrocarbons become…