b. Scan the document c. Save the file in your “My Documents” d. Upload the file into Moodle e. Keep the paper copy filed safely as a backup 3) The deadline for completion is Sunday 24th November 2013. Late submissions cannot be awarded a grade other than a pass. 4) The labels have become detached from four containers. The labels indicate that the contents are soluble starch, sucrose (a non-reducing sugar), glucose (a reducing sugar), and albumin (a protein). Solutions have been made from samples of each container, and labelled A, B, C, and D. Use chemical tests to identify each solution.
What amounts of stock solution and water do you need to use? (Remember that you will need enough solution to more than cover the egg.) p. Write up your new dilution procedure in your lab notebook, including the calculated salt concentrations for each cup. q. Make the new dilution series.
Paper chromatography can be used in separating amino acids and anions, RNA fingerprinting, and testing histamines and antibiotics. (Infromation received from sonic.org Purpose The purpose of this experiment was to separate the dyes that these markers are composed of and show how chromatography works. Materials * Four different markers (including one black permanent marker) * Rubbing alcohol or isopropyl alcohol * Coffee filters (2) * Tall glasses or plastic cups (2) * Pencil * Ruler * Tape * Table salt * Water * Measuring cups/spoons * Clean pitcher or 2-liter bottle Procedure 1. Your first task is to cut the coffee filter into a rectangle measuring three cm by nine cm. You will need 2 for this lab.
After shredding was complete the pile of cabbage was placed into a stainless steel cook pot. 2. In order to attempt to get the most accurate results I used my fish tank ph test to identify the ph level of my tap water. The result was my tap water is about a 7.8 (slightly higher than the 7.0 that is considered neutral). 3.
After obtaining 5 sheets of white computer paper (21.5cm by 28cm), Test 1 was performed. Test 1 consisted of 17 individually drawn 9cm diameter circles using different writing utensils (gel pen, dry erase marker, pencil, or permanent marker) for each circle, as seen in Table 1. A 9cm diameter petri dish was used as a guide to draw four individual circles per page; one top left, top right, bottom left, and bottom right, with four centimeters separating each circle. Once the circles were made, one termite was taken out of the petri dish and placed in the middle of first circle at the top left section of the first page. The termite was confined to the upper left section of the paper only and given 15 seconds to move over to the edge of the circle.
We now slowly pour the solution into a funnel with filter paper. The extract along with 2 pieces of Iodine are added to a new beaker and left for 10 minutes. Finally to determine if the lab was successful, three tests are conducted for Iodine, Iodide and triiodide. The objective is to produce a tincture of iodine by extracting iodide and other components from seaweed. Warm up Activity 1.
How many moles of zinc are in a penny? Purpose: This lab is being performed so students can visualize a single-replacement reaction and calculate how much zinc is in a post-1982 penny. Materials: A post- 1982 penny steel wool 3 M HCl graduated cylinder small beaker tongs balance paper towels sharp edge Safety: 3 M hydrochloric acid (HCl) is fairly caustic. Wash hands immediately if you spill on them. Wear goggles.
To grow the E. coli, 190ml of 2% glucose nutrient media was added to a 250nl Erlenmeyer flask. 10ml of nutrient media was used to blank the spectrophotometer set at OD600. 10ml of E. coli stock culture were added to the 190ml nutrient media, creating a 1:20 dilution. The inoculated nutrient media was then placed into a 37C orbital shatter to incubate. All solutions measured with the spectrophotometer were placed in spectrophotometer tubes.
You may spool the DNA on your glass rod or pipette tip. 10. Spool the DNA by dipping a pipette tip or glass right where the extract layer and alcohol are in contact with each other. With your tube at eye level, twirl the rod and watch as DNA strands collect. Data: | Amount Added or Obtained | Initial Color | Purpose | Buffer | 10 ml | blue | Break through the cell membrane | Strawberry | 1 | red | Subject tested
Furthermore, mercury spreads and destroys plants and animals in the area. All of the above help to cause the greenhouse effect, affecting global warming massively. If this continues the oxygen throughout the world will decrease. A staggering 40% of the world’s oxygen supply comes from the rainforest. Statistics state, and I quote; “at this rate the rainforest only has 28 years left “.