identify substances. D=M/V. mass= found using a balanc and labeled in grams and volume=graduated cylinder or taking ( lxwxh ) measured in mL or cm3 2) Materials ⦁ a) List -graduated cylinders -balance -plastic strips ( polystyrene‚ polythylene‚ polyvinyl‚ & unknown plastic) -salt water -rubbing alcohol water ⦁ b) Safety -closed toed shoes -safety glasses -tie long hair 3) Procedure ⦁ a) Part 1: i. safety glasses ii. fill one vile/graduated cylinder 3/4 full iii. fill another cylinder
Premium Plastic Polyvinyl chloride Volume
manufacture of plastics‚ such as packing films‚ wire coatings‚ and squeeze bottles. Fruit: Ethene is made from the process of cracking hydrocarbons from petroleum. Ethene can then be used to make other raw materials like‚ ethanal‚ ethanol‚ and ethyl chloride. Ethene also occurs naturally in plants and stimulates the ripening of fruits. However by keeping the fruit in a chamber‚ such as a greenhouse‚ the amounts of ethene present in the air can be controlled‚ and thus the degree of ripening of the fruit
Premium Ethylene Polyvinyl chloride Fruit
people from sales and marketing and discussed several options for closing the loop by recycling the material from Mirra chair. The major issue the company faced was determining the material that was going to be used for the arm-pad skin: polyvinyl chloride (PVC) versus thermoplastic urethane (TPU). PVC was known to be inexpensive and provided to be durable‚ scratch resistant and soft; but violated the standards of the C2C protocol. PVC had bad press due to its toxicity during manufacturing process
Premium Recycling Design Furniture
Making Sodium Chloride Equipment: Method: 1. Firstly‚ safety measures were taken by putting on laboratory coats‚ wearing safety goggles and tying long hair back. This was to protect clothing‚ eyes and to avoid burning as the experiment included dealing with open flames. 2. The equipment needed (as shown and labelled in picture A) was collected. 3. Using a measuring cylinder for each‚ to be exact with measurements‚ we measured out 10cm³ of HCl and 10cm³
Premium Sodium chloride Chlorine Sodium
could go on and on and it is obvious that much of what we have today would not be possible without plastics. Introdution of plastic pollution Plastic is one of the few new chemical materials which pose environmental problem. Polyethylene‚ polyvinyl chloride‚ polystyrene is largely used in the manufacture of plastics. Synthetic polymers are easily molded into complex shapes‚ have high chemical resistance‚ and are more or less elastic. Some can be formed into fibers or thin transparent films. These
Premium Plastic Polyvinyl chloride Polymer
Issue Investigation: Polyvinyl Chloride (PVC) Introduction: (Approximately 150 words) – KU3 · This investigation will be looking at the positives and negatives of using Polyvinyl Chloride (PVC)‚ and providing viewpoints on whether it is ethical to continue using this toxic plastic. PVC is a useful plastic‚ but can be harmful to humans and the environment. This plastic is used in medicinal tablet containers‚ to make bags for bedding‚ shrink wrap‚ deli and meat wrap‚ and tamper resistant lids
Premium Chemistry Oxygen Bacteria
Signed_________________________________________ Abstract A common road salt‚ magnesium chloride‚ was analyzed in the lab to test its effectiveness as a road salt. The Van’t Hoff factor of the salt and the enthalpy of dissolution when dissolved in pure water were experimentally tested to evaluate its many characteristics as a deicer. To determine the Van’t Hoff factor‚ the difference of temperatures of freezing water and a solution of magnesium chloride was determined. A Van’t Hoff factor average of 2.88 was found‚ which
Premium Enthalpy Water Sodium chloride
Investigating the Reactions between Polyvinyl Alcohol and Borax in Making a Rubber Ball Introduction Chemistry‚ while usually thought of as being practiced mostly in labs‚ actually affects everyone‚ everywhere. Chemistry and chemical processes are constantly occurring. We are dependent on them. The air that we breathe‚ the food that we eat‚ and thousands of other simple and confusing things depend on chemistry. In this particular case‚ the relationship between Polyvinyl Alcohol (PVA) and Sodium Borate
Premium Ratio Chemistry Polymer
Plastic in Our Oceans 46‚000 pieces of plastic per square mile make up 90% of our ocean’s trash accumulation (Nichol‚ 2012‚ Plastics‚ like Diamonds‚ are forever‚ para. 1). Within the areas‚ many animals will either ingest‚ become entangled in‚ or even die due to the high plastic amounts. Nearly 267 species are harmed by plastic (Nichol‚ 2012‚ Fast Facts). With such deadly effects due to yearly accumulation‚ the banning of plastic bags and reduction of usage in a household will improve overall health
Premium Plastic Ocean Stomach
In the experiment‚ we tested a sodium chloride solution. Along with the tested solution‚ control groups (water and sodium phosphate) were used to be help understand whether or not NaCl was a buffer. Water was the negative control group and sodium phosphate was the positive control group. If NaCl was a buffer than the pH would be stabled as the sodium phosphate buffer. If NaCl was not a buffer than the pH would fluctuate like the negative control‚ water. During the first trial and prior to the drops
Premium PH Acid Hydrochloric acid