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- If you want to make 7 L of 1X TGS (Tris/Glycine/SDS Running Buffer) using 8 x TGS stock, how much of the 8 x stock do you need? Report your answer to 1 decimal place.BSA Concentration (ug/mL) Abs 2000 2.25 1500 1.715 1000 0.915 750 1.156 500 0.714 250 0.082 125 0.086 25 0.082 Create a BSA standard curve Abs562=f[BSA] using a Scatter Plot representation in Excel.Which two statement about the substances in this experiment are true? A. Chalk is harder than quartz. B. Isopropyl alcohol boils more easily than vegetable oil. C. Water has a higher surface tension than soapy water. D. Saltwater has a higher surface tension than plain water.
- What are the names of the elements that we can not analyse with Atomic Absorption Spectrophotometer but we can use ICP-OES for quantitative analysis.How do you measure the amount of µmoles of a substance from absorbance? If the absorbance is 0.019, the extinction coefficient is 0.0106(µmol/mL)-1 cm-1, path length is 1cm, and the total volume was 4 mL..Which of the following substances would be considered basic? A. hydrochloric acid (pH 1.0) B. milk (pH 6.6) C. baking soda (pH 8.1) D. water (pH 7.0) E. Dr. Pepper (pH 3.0)
- The pH scale shows availability of reactive hydrogen ions (H+) in a liquid. The scale is logarithmic, so milk has 10 times as many H+ ions as pure water, for a given volume. How many more H+ ions does soda pop have compared to pure water? Write the number only.Predict the pH of a sample of water if Kw were 10−10 or 10−20.What is the concentration of hydrogen ions [H+] in a solution that has a pH of 2? (write out using decimals)