Why can we use drops instead of concentration to graph the data? What do we have to do experimentally to ensure reliable data? In other words, what equipment do we need to use to make sure the only thing changing is the concentration of bleach.
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- The following image is a scheme for serial dilutions prepared for spectrophotometric analysis. If the stock solution concentration is 0.05 % (v/v) can you calculate the other tube’s concentrations in % v/v? I've used this with direct dilutions, how would I use this on serial dilutions?In UV/Visible spectrophotometer analysis for a multicomponent system, there are only two dyes used in the mixture, the two proportions should be totalled to 1.0. but on finding You got 0.6 in total. Explain the reasons for the difference.How can you tell if the current or the gel electrophoresis is already running and what are the common mistakes or problems encountered in gel electrophoresis analysis?
- What can be the errors and limitations of Gel Electrophoresis practical? Explain in very much detail and also provide some better suggestions.What is the reason for using blind tube in spectrophotometric and calorimetric studies?A fellow classmate comes to you to ask your opinion about the following result from this SIM test: (Uploaded Picture). a) Provide a full interpretation and analysis of the results this test. b) Your classmate is not fully convinced about the black coloring seen in this result. Please suggest another type of method that would help confirm this result and what explain what the result should show.
- Does measuring using higher (50mL vs 100mL) produce more accurate and precise results? Why?Here are the materials and method for the basic spectrophotometer experiment Materials:1. Paper template2. Scissor3. Light source (i.e. torchlight, portable light)4. Paperboard (black colour)5. Unused compact disc (CD)6. Camera detector (i.e. webcam, laptop, mobile phone) Methods: 1. Make a foldable paper spectrophotometer using the paper template and followthe instruction as in https://publiclab.org/sites/default/files/8.5x11minispec3.8.pdf2. Then, mounted the paper spectrophotometer to the camera detector.3. Download any freely available spectral analyzer.4. Test and observe the wavelength with and without the presence of a light source.5. Finally, observe the wavelength with a different transparent colour sheets (you canchoose any colour). Troubleshooting/ problem(s) encountered for basic spectrophotometer experiment.Which of the following statements are true about the use of a blank in spectrophotometry? Select all that apply. Select 2 correct answer(s) A blank is needed because the spectrophotometer also measures the absorbance of the cuvette and water. A blank must be measured prior to measuring your sample. None of the answer choices listed are correct. A blank must be measured after measuring your sample. A blank is only needed when the concentration of your sample is known.
- What is the difference between cost per billable test and cost per reportable result. (Give examples referring from the laboratory environment)Why is it important that the standard curve you create in biological analyses with spectrophotometry is measured using specialty cuvettes?Which of the following is/are source/s of error in performing a spectrophotometric method? Answer all that apply. Sample is turbid when the absorbance is read. The absorbances were read at maximum absorption. Standard solutions are prepared accurately. The cuvettes have fingerprints.