We did the calculation after we finished the measurement and adjustment. The find day we make the graph of the contraption, and then do the final drop test. Problem of Statement: To design a device that will protect 1 large Grade AA raw egg from breaking when it is dropped from second floor. The device should have a light weight short egg removal time, and the most accurate drop to the drop zone target. Diagram of the Contraption: Prototype: The contraption after adjustments:
Osmosis/Egg Lab By: Nicole Dressen Problem to Solve: How the mass of an egg changes in different substances. Information Collected: A. Hypotonic: a substance with lower concentration when compared to another substance. B. Isotonic: when the concentration of two substances is the same. C. Hypertonic: a substance with more concentration when compared to another substance. Hypothesis: I think the mass of the egg that is in the water will stay the same but the mass of the egg that is in the sugar will increase mass.
: False Which of the following is not an Itaglio? : Drafting Who did FLora Bond Palmer paint for? : Nathanael Currier What is the basic tool used in engraving? : Burin Artists of the Renaissance had welcomed the camera obscura because: it helped the accuracy of their
When an ionic or polar compound enters water, it is surrounded by water molecules Salt or Sodium Chloride Salt is a mineral that is composed primarily of sodium chloride (NaCl), a chemical compound belonging to the larger class of ionic salts. So when an ionic substance (salt) dissolves in water, it is broken up into individual ions which are surrounded by water molecules. Baking soda Sodium bicarbonate or sodium hydrogen carbonate, known as Baking Soda, is the chemical compound with the formula Na HCO3. Sodium bicarbonate is a white solid that is crystalline but often appears as a fine
It is simple really they can open their own chicken coop. By doing this they will be able to keep their cost of poultry down and ultimately make more profit. Another benefit to Chick-fil-A opening their own chicken coop is that they would be better able to control the avian flu. The avian flu is spread through contaminated water and dirty living conditions. By keeping the chickens living conditions in immaculate condition they can better control this disease.
The other I made to succeed. For the one that was made to result in a break of the egg I used a Styrofoam cup, insulated with tin foil, and cotton stuffing to line bottom of the cup and on top of the egg. For the other design I used a Styrofoam cup, paper towel to insulate the cup, marshmallows to secure the bottom of the egg, the egg placed in the middle with tin foil on top, and then paper towel on top to cushion the egg when dropped. To begin my experiment I knew the egg required secure protection that would absorb the shock in order to not break. Also, I was aware the cotton stuffing would move more than the paper towel, which would result in a in the egg receiving the shock which would cause the egg to crack.
Kumari Biswas Chem 106 – 07 October 06, 2014 Menglu Shi Group member: Shemeika McLaren, Jose Suarez, Colleen Shum Lab 3: Redox Arena Redox Arena Lab Part I Observations and Data Observations of starting materials and standards Chemicals | Observations | The Four standards | Granular zinc | Silver-gray irregular solids | Iodine crystals | Purple-black spherical solids, strong smell | Zinc ion and iodine-iodide-triiodide ion in H2O | Red brown liquid | Zinc iodide | Gray white solid powder | Chemicals used for tests | 0.17 M acetic acid | Clear liquid | Mineral oil | Thick clear liquid | Silver nitrate (AgNO3) | Clear liquid | Magnesium turnings | Solid curled metals | 3 M HCl | Clear liquid | Other chemicals
White precipitate shows the presence of chloride (Cl-). Chloride anion equation: HCl(aq) + AgNO3 (aq) → HNO3 (aq) + AgCl(s). The nitrate anion test involves cooling a mixture containing 1 mL of test solution and 3mL 18M H2SO4. 2mL is poured down the inner test tube side and the presence of a brown ring shows nitrate (NO3-) to be present. The carbonate anion test mixes 1 mL of test solution and drops of 6M HCl.
Observing Changes – Materials & Procedures Materials Water Copper (II) sulphate (Powder) Copper (II) sulphate solution Iron nail Sodium carbonate Hydrochloric acid Magnesium ribbon Flame (candle) Sugar Aluminum foil Test tubes Test tube rack Tongs Medicine dropper Spoons Beakers Safety goggles Scoopulas Procedures Water and Copper (II) Sulphate Procedure 1. Add a small amount of solid copper (II) sulphate to a test tube with a scoopula. Record the physical properties. 2. Write a hypothesis on what you think will happen when water is added.
(d) What evidence suggests that nitrate compounds are soluble in water? (e) Write the chemical formula for each precipitate that formed. Apply and Extend (f) Write a balanced chemical equation for each precipitation reaction that occurred. (g) Why is it necessary to use distilled water to prepare the solutions used in this investigation? (h) "Hard" water contains a high concentration of calcium ions.