On the other paper towel spread 1 teaspoon of sugar as evenly as you can on top
Absorbency affects: skin comfort, static build-up, dimensional stability in water, stain removal, water repellency, and wrinkle recovery.
The purpose of this experiment is to find out which brand of paper towel, Decorator or
The ending result of this experiment confirms that as five test tubes are lined up with the varying level of absorbance, different results in the level of absorbance will appear as well, this is visible in above table. Thus, this is due to the varying amount of water in the solution. The blank sample had a 0.30 in its level of absorbance.
For this experiment we were instructed to conduct our own procedure with whichever combination of treatment we thought best would yield the greatest amount of absorbance of betacyanin. My lab partners and I chose to do treatments with ethanol a mild organic solvent, 1% triton a mild detergent solution , and a combination of ethanol and triton.
The absorbance is measured using a Plate reader and a Standard curve is generated. Also, the different types of pipetting techniques are assessed in this Assay.
Three paper towels A, B, and C where tested on absorbency. This experiment was tested twice. Paper towel A was 26.5 by 28 centimeters. Paper towel B was 26.5 by 28 centimeters. Paper towel C was 15 by 28 centimeters. Scissors were obtained and each paper towel was cut to 13.5 by 15 centimeters. The weight of the three paper towels at this size was 0.9 grams dry for paper towel A, paper towel B weighed 0.8 grams dry, and paper towel C weighed 1.2 grams. Three beakers weighing 12.2 grams each were obtained. Each beaker was filled with 100ml of water with the outcome of them weighing 128.1 grams each. The weight of each paper towel dry was deducted from the weight of each paper towel. Paper towel A was left to soak for seven seconds.
1. Take a paper towel and cut out two circles that are the same size as the base of the petri dishes.
Pour approximately 50 mL of room-temperature distilled water into the glass beaker by using the estimated volume on the beaker.
Therefore, my hypothesis was proven to be incorrect. During the experiment, I placed quarters onto a single paper towel of each brand at 5 second intervals. I continued to place quarters on top of the paper towel until it tore. I repeated this process for a total of three trials per paper towel brand. After each trial, I recorded the number of quarters that the paper towel held. The results showed that Kroger was the strongest paper towel brand followed by Bounty, Sparkle, Kirkland and finally the Fry’s Generic Brand. Kroger was able to hold an average of 55 quarters without
Figure 2: Dye percents versus absorbance in a control, 10%, 20%, and 30% azide solutions.
8. Use the plastic forceps to remove the potato cylinders from the beakers (keep them together in the same group), and blot off the excess solution weight on them with the paper towels.
concentration, record the absorbance readings at a fixed wavelength, and plot the absorbance vs. concentration data. The wavelength of 520 nm was selected for experiment Part
6. Squirt water once from bottle onto each of the smarties on both pieces of filter paper