8282512
Beschreibung
Mindmap von Lily O'Brien, aktualisiert more than 1 year ago
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Erstellt von Lily O'Brien
vor etwa 7 Jahre
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Titration
- Compare the hardness of water samples
- Method
- Fill a burette with 50cm3 of soap solution, add 50cm3 of the first water sample into a flask and use the burette to add 1cm3 of soap solution to the
flask.
- Put a bung in the flask and shake for 10 seconds. Repeat, adding more soap solution until a good lasting lather is formed (bubbles cover surface for at least 30 seconds)
- Record how much soap was needed to create a lasting lather and repeat the process with other water samples.
- Next, boil fresh samples of each type of water for 10 minutes and repeat the experiment.
- Next, boil fresh samples of each type of water for 10 minutes and repeat the experiment.
- Record how much soap was needed to create a lasting lather and repeat the process with other water samples.
- Put a bung in the flask and shake for 10 seconds. Repeat, adding more soap solution until a good lasting lather is formed (bubbles cover surface for at least 30 seconds)
- Fill a burette with 50cm3 of soap solution, add 50cm3 of the first water sample into a flask and use the burette to add 1cm3 of soap solution to the
flask.
- Method
- When boiling the water for the experiement, water that was unboiled but needed little soap solution and needed the same amount boiled, will
be soft water, water that needed a lot of soap solution before and after will be hard. Water that needed lots of soap and a little soap after
boiled will be temporary
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