1) Percentage yield experiment: First we measured 20cm3 of sulphuric acid into a beaker using a measuring cylinder, this will help us determine the percentage yield at the end of the experiment. We then heated the beaker containing the sulphuric acid using a Bunsen burner in order to heat it up for the copper oxide to mix with. We then weighed out 1.02g of copper oxide and added it to the acid and stirred it whilst doing so, we did that until the liquid turned blue, this proves that the chemicals have mixed together. We then weighed this liquid which will help us determine the percentage yield. We then filtered the liquid off which gave us the amount we obtained.
Remove them from a pot with a skimmer and allow them to drain on the plate. Break the eggs and lightly beat them in a bowl. Add the grated cheeses, eggplants, some milk, dill, salt, and peper. Stir well. Taste to see if additional salt is needed.
Now we get ready to add the sweets. Since you already have your eggs and vanilla in its time to add your baking soda. You now go and get your 2 teaspoons of hot water and pour 1 teaspoon of baking soda in and wait for it to dissolve.To add main ingredients. Now add the baking soda into the batter.Along with the baking soda add a pinch of salt, 3 cups of flour and 2 cups of chocolate chips. Once you have the batter mixed into dough you 're ready for the fun part.Now grab a tablespoon and scoop out a little bit of the dough and shape it into balls.
Crystal violet was then added for 60 seconds before being washed off with water. The mordant, Gram’s Iodine, was added for another 60 seconds before getting washed off with water. The heat fixed smear was then washed with 95% alcohol until the wash ran clear, leading to the final step of adding Safranin for 45 seconds before being rinsed with water. The slide was finally blot dyed with bibulous paper before it was placed under a microscope to observe the color and shape of the bacterium. 2.2 Litmus Milk Reaction A milk-based, litmus broth tube is incubated and observed after 48 hours.
The Incredible Egg The purpose of this lab was to find out what would happen over time to weight of an egg after we scrubbed the eggshell off in a little spot. We then soaked it in water for 10 minutes, 30 minutes, 24 hours and measure how much the weight went up. Once we came back the next day we measured them after 24 hours. In the same day we put the syrup in the cup instead of water and we measured how much it weighed after 10 minutes, 30 minutes and 24 hours. As we did this with the water the weight of the egg went up because the water soaked into the egg and made it heavier.
Big Question Can eggs bounce in different types of liquid? Hypothesis We think that the egg in hot water will become a hard boiled egg so it will bounce,we also think that the egg in chunky milk will become more solid, we think that the vinegar will make the egg bounce Procedure Our procedure is... The first thing we would do is get our materials we need, then put our eggs in the liquids we got and wait 6 days with the egg in each liquid. Then we would take the egg out of the liquids and then try to bounce the egg. Materials Our materials are… ~ A cup of Hot water ~ A cup of Chunky milk ~ A cup of Vinegar ~ 4 Dozens of eggs ~ 48 plastic cups ~ Pair of plastic exam gloves ~A tub of clear
When testing one organism, for example Mycobacterium tuberculosis, the dilution is prepared in agar slopes but at this time it is necessary to prepare another identical set to be inoculated with the organism which is control. To make dilution a small volume of water is used and then the dilute is added to agar that melted and then cooled to 60degrees C. If chocolate agar is required blood is added, and the medium must be heated before addition of the antibiotic. Petri dishes with 90mm diameter are convenient to be used and one ml of the desired drug dilutions is added to 19ml of the broth. Agar dilution factor must be allowed in the first calculation as follows: • The final volume of the medium in the plate equals 20ml • Top concentration of the antibiotic equals 64mgL • Drug total amount equals 1280 microgram is added to 1ml water • 2mls of 1280microgram per ml is required to start the dilution equals 2560micrograms in 2mls. • 1.28mls of 2000micrograms per ml ± 0.72ml of water.
Soak them in a bowl of water, enough to cover them, and put in half a cup of apple cider vinegar, or lemon juice if you don 't have ACV. This helps leach the minerals out of the bones. Then I put them in the oven to brown for around 20 minutes. Some people don 't do this step. I put the water from soaking the bones in the slow cooker.
If you would like to make your own flaxseed gel, simply boil a cup of flaxseeds and 2 cups of water, then let cool. Apply gel directly after leave-in. Finally, the good part. Once finished with all the steps, look in the mirror, and shake your head fiercely so that all the excess product and water comes off. Then, let your hair air dry or blow dry with a diffuser, so that maximum volume can been achieved.
Using the lit tea light, like a bursen burner, I flamed the mouth of the S. epidermidis culture. The sterile cotton swab was inserted in the S. epidermidis culture and twirled around to obtain a specimen. The entire plate was inoculate with the swab from top to bottom, to achieve a lawn of growth. The dry forceps was used to remove the antibiotic disk into the appropriate spot on the plate. This process was repeated for the all antibiotics with aseptic technique being used.