How does the Bromocresol green indicator work to produce a color change for the end point of titrating standard HCl to Na2CO3? Explain. The color change of the phenolphthalein, the indicator, at an end point can be explained in terms of which of the following? What i...
How does a fish finder transducer work? How are rating scales used in Parkinsonism evaluation? How do we measure the ozone layer? Why use methyl orange instead of phenolphthalein as a pH indicator? What is the purpose of measuring erythrocyte sedimentation rate?
How does chemistry relate to sepsis (an infection where antigens invade the red blood cells)? Why do atmospheric aerosols have a cooling effect? What are some causes of a high percent error when titrating Ca(OH)2 with HCl and phenolphthalein indicator?
Add a drop or two of the Kastle-Meyer solution. This is aphenolphthaleinsolution, which should be colorless or pale yellow. If the solution is pink or if it turns pink when added to the swab, then the solution is old or oxidized and the test will not work. The swab should be uncolore...
Phenolphthalein Thymolphthalein Club soda (optional) Here's How If you are making your own bubble solution, mix the detergent and water. Add the sodium hydroxide and indicator to the bubble solution. You want enough indicator so that the bubbles will be deeply colored. For each liter of bubb...
The phenolphthalein presumptive blood test is a highly specific test used to assess potential false positive results of the other blood presence tests on works of art (and in crime scene forensic investigative work). [13]The photograph shows our dry wipe samples of (#6) a non-pigmented area...
What indicator should be used for titration? What is titration of oxygen? Is titration qualitative or quantitative? How do you prepare phenolphthalein indicator for titration? What is a redox titration in analytical chemistry? How do you eliminate dissolved carbon dioxide in titration? How do you ...
Describe how on a molecular level the indicator phenolphthalein works in different transitions. Explain why NaOH is not the best test reagent for detecting Pb2+. Describe the composition and properties of colloidal dispersion. List and explain several technological applications of colloids. Ho...