10. Take a photo of the plate showing theA Buffering Capacity of a Solutioncolors in each well.11. Empty the plate into the sink with running1. Turn the well plate 90 so that it is four rowswater. Rinse the plate with pure water, notby six columns.tap water.2. In the cup labeled "4.7," prepare 20 mL of12. Dry the plate by placing it upside down on4.7 pH buffer by doubling the volumessome paper towels. Tap it several times tocalculated in the prelab.remove most of the water.3. Add 2 ml of this solution into all 6 wells in the13. Set aside the water, acetic acid, sodiumfirst row. See Figure 3 below.acetate, and sodium hydroxide solutions.4. Dilute 5 mL of the 4.7 pH buffer solutionYou will need them for the next part of thewith 15 mL of purified water containing theactivity.indicator and pour into a clean cup. This is14. Empty the remaining plastic cups into thethe first dilution.sink with running water.5. Add 2 mL of the first dilution to all the wells inthe second row.Figure 3.Un-diluted bufferOooOOOFirst dilutionOooOOOSecond dilutionOOOOOOThird dilutionOooOOOcontinued on next pageCAROLINAwww.carolina.com/distancelearning 9
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Part 1Title: Lab ResponseDiscuss one feature of MS Word and one feature of MS Excel that you found challenging within the lab and why. Examples are WordArt, inserting shapes, adding borders, cell styles, etc. This response should be at least one paragraph in length. Part 2Title: History of Computers Identify and discuss a key milestone in the history of computers that interests you and why. This section should be at least one paragraph. Part 3Title: System Software vs. Application Software In your words, explain the difference between application software and system software as if to another coworker who has limited technical knowledge. Use examples to support your rationalization. This section should be at least two paragraphs. Part 4Title: Blockchain and Cryptocurrency In a minimum of one paragraph each: 1. Conduct some research on the internet and discuss one underlying technology of cryptocurrencies like blockchain, cryptography, distributed ledger technol...
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