Materials: 1) Beakers 2) Water 3) Plastic wrap 4) Rubber band 5) Light corn syrup 6) Vinegar 7) 2 raw egg (large) 8) 2 graduated cylinder (100ml, 50ml) 9) Marker for labeling cup 10) Tri Beam scale Procedure: 1) Measure 130ml of vinegar into the beaker. 2) Gently place the egg into the vinegar. Make sure the egg is completely covered by the vinegar. 3) Weigh all of the items o the scale 4) Cover the beaker with plastic and secure it with a rubber band. 5) Label the beaker with your name and period.
c Use the syringe to place 2 cm3 of amylase into the test tube. d Add 1 cm3 of buffer solution to the test tube using a syringe. e Use another syringe to add 2 cm3 of starch to the amylase/ buffer solution. Start the stop clock and leave it on throughout the test. Mix using a plastic pipette.
Add two drops of food coloring to the beaker of distilled water and mix thoroughly. Measure out a dropperful of bleach into a plastic pipet and set it aside until Step 8. 6. Calibrate the colorimeter a. Prepare a blank by filling an empty cuvette ¾ full with distilled water.
Experiment: Materials: -2 graduated cylinders -4 food colorings -something to stir with -1 beaker -50 mL of water -25 mg of salt -scale to measure salt -timer Procedure: measure 10 mg of salt in the scale and put it in the bottom of the graduated cylinder before putting in anything else measure 50 mL of water and put it in a beaker add 15 mg of salt to the 50 mL of water and stir it until it is completely dissolved carefully put 10 mL of the saltwater in the graduated cylinder with the salt in the bottom put 2 drops of food coloring in the saltwater that is in the graduated cylinder wait about 1 minute until that saltwater layer is completely colored add 10 mL of water to the beaker that has saltwater in it so that the salinity of the water decreases. stir. carefully pour the water with less salt into the graduated cylinder that has the other layer(s) add 2 drops of another color to the new layer that has less salt and wait 1 minute a second layer should me forming repeat steps 7-9 so that more layers can be made Observations: the new layers take some
Using a burette, run 5.0 cm3 of 0.100 mol dm-3 peroxodisulphate solution into a 100 cm3 beaker. Add 45 cm3 of distilled water, from a burette, stir gently to mix. 2. Using burettes, measure out 15 cm3 of each of the 0.500 mol dm-3 potassium iodide, 3 cm3 of 0.010 mol dm-3 sodium thiosulphate solutions and 2.0 cm3 of starch solution into the second 100 cm3 beaker. 3.
Brine is actually a word used for salt water. In this experiment, you will investigate how salt concentration affects the number of shrimp eggs that hatch and survive. Your results will allow you to determine the salt concentration which allows the most shrimp eggs to hatch. Start this experiment by writing a procedure that you can follow to do the experiment and obtain valid conclusions. How would you design your experiment to determine the best conditions for brine shrimp eggs to hatch and survive?
I then allowed the remaining liquid to evaporate leaving behind salt. I poured the salt into the weighing dish and weighed the mass and calculated and recorded into table 1. Data Table 1: Experiment Data Grams Percent of Mixture Iron Fillings 0.9 gm 19.6 % Sand 1.4 gm 30.4 %
Put the sand and salt into a beaker filled with 60 mL of water, and then stir it until you can’t see the salt anymore and the sand is settled at the bottom. 4. Get a ring stand and place the iron ring on it, then put in a funnel cup with filter paper inside of it. Then place a new beaker underneath the funnel cup. 5.
To determine if hyphae grow at the same rate, graph the results of table 2 and compare the slopes of the 3 hyphae from the slide preparations. 11. To determine if mycalolide B affects fungal tip growth and nuclear position repeat all the steps except in step 2 need to add mycalolide B and let it incubate for 10 minutes. Make sure to label the slides with the
8. Placed the remaining mixture, containing sand, benzoic acid and table salt into beaker and added 50mL of distilled water. 9. Set up the beaker stand and burner fuel and heated the beaker of solids and water to near boiling. Stirred the mixture to make sure all soluble material dissolves.