1. Prepare two tubes. Label one '+' and the second . Add 5 pl of your...
The concentration of a diluted "wine" sample was found to be 0.32 %(v/v) ethanol. Assuming the dilution was done as described in Part B of the procedure for this lab, what was the original concentration of ethanol in the "wine"? Enter your answer with 2 significant figures. B. Preparation of Unknown Samples 1. Label two small test tubes "wine" and "breath”. 2. Use a disposable pipette, add 1.0 mL (25 drops) of “wine” solution to the wine test tube. a....
Methods A. Setting up your tubes: Label (1, 2, 3, 4, 5, and 6) the six 1.5 ml size tubes at your station. Put 25 HL of red water solution into test tube number 1 Put 30 uL of yellow water solution into test tube number 3 Put 40 HL of blue water solution into test tube number 5 B. Constructing color spectrum: Make sure you record action in Table II below: Take 5 L from tube number 1 and...
1.) What would the product be if you oxidized a tertiary alcohol? A.) Ketone B.) Aldehyde C.)Carboxylic Acid D.) No reaction 2.) What would the FULLY oxidized product of a primary alcohol be? A.) No reaction B.) Carboxylic Acid C.) Aldehyde D.) Ketone 3.) Which types of alcohol can be oxidized? Choose all that apply. A.) Quaternary B.) Primary C.) Secondary D.) Tertiary 4.) the Ethanol standard in test tube 3 will have a final concentration of _____%(v/v) ethanol. 5.)...
please , i need Write the protocol by your own words ( steeps) 5. Add 1 volume of 70% ethanol to the cleared lysate, and mix immediately by pipetting. Do not centrifuge. Proceed immediately to step 6. Note: The volume of lysate may be less than 350 pl or 600 pl due to loss during homogenization and centrifugation in steps 3 and 4. Note: Precipitates may be visible after addition of ethanol. This does not affect the procedure. 6. Transfer...
A Safety Note Safety glasses and gloves are required Procedure 1 Reading the pH A simple way to measure pH is to use pH paper To test the pH with pH paper, place one or two drops of the sample solution on the paper with a dropping pipette, and compare the color change with the colors on the side of the pH paper container. The pH is read as the number that cor responds to the color the paper turned....
Suppose you filled one test tube with alanine and a second test tube with casein, but forgot to label the test tubes. What test could you run on the samples to confirm which test tube contained the alanine? Explain.
phenol is in each of your unknowns. 1. You will be given a nitrophenol solution of concentration 400 nmoles/mL and you will use this stock solution to make a serial dilution as follows: To make the serial dilution you need to prepare 5 tubes with 1 ml water. Next, add 1ml from the 400 nmoles/ml stock to the first tube. Pipette the solution up and down carefully and remove 1 ml of this solution to the next tube. Repeat this...
You are given 2 nutrient broth tubes each containing a pure culture of one of two Gram Positive bacteria. Unfortunately, the labels have washed off and you are asked to determine which tube contains Streptobacillus epidermidis and which tube contains Diplococcus anginosus. a. Name a technique you would use b. DRAW the expected results used to sort the 2 tubes. Make sure to label your drawings (which is S. epidermidis and which tube contains D. anginosus)
Need help filling in the chart and answering the questions that go along with it. I have added the procedure and the instructions as well as the "results" that are supposed to be used to fill in the chart. Thank you! We were unable to transcribe this imageTABLE 8-1 Cast of Characters and a Legend of Abbreviations Name Symbol Function in This Experiment Green fluorescent protein GFP It serves as an indicator of successful transformation and gene transcription expression in...
In this lab, you will quantitatively estimate the protein concentration in the following 3 unknown samples: 1. Milk 2. Diet drink 3. High protein health food drink. Before you do the lab, you are expected to know the following: 1. How will you make the dilutions of the provided standard protein BSA (Bovine Serum Albumin) in the microfuge (1.7 ml small) tubes? Draw the chart for the same. 3 marks 2. How will you make the dilutions for the above...