Bioscience Equipment Unit Glassware 132022 Property of CTE

Bioscience, Equipment Unit Glassware 1/3/2022 Property of CTE Joint Venture

Bellwork You need to make a cake for your friend’s birthday. What pans or bowls will you use to make the cake? Why did you select those particular pans or bowls? 1/3/2022 Property of CTE Joint Venture

Purpose In order to accurately complete any of the labs in this class you will need to be able to select appropriate glassware based on the volume of liquid you will be using or mixing. 1/3/2022 Property of CTE Joint Venture

Objectives Identify laboratory glassware Select appropriate glassware Use laboratory glassware Maintain control inventory for glassware 1/3/2022 Property of CTE Joint Venture

Terminology Graduated Cylinders Volumetric Flasks Measuring pipettes Beakers Erlenmeyer Flasks Pasteur pipettes 1/3/2022 Property of CTE Joint Venture

Predict Why would you not want to use a bucket to measure a cup of water? Be prepared to share PROPERTY OF PIMA COUNTY JTED, 2010 1/3/2022 Property of CTE Joint Venture 6

Graduate cylinder Description: a narrow cylinder shaped piece of equipment with incremental measurements. Types: 10 ml, 25 ml 50 ml, 250 ml, 500 ml, 1000 ml Used to: measure used to measure in the range of 10 -2000 ml 7 yoy. 8 o 4. zirveiletisim. net - image source 1/3/2022 Property of CTE Joint Venture

Volumetric Flask Description: Have a round base and narrow neck. Calibrated with more accuracy than a graduated cylinder Types: 100 ml, 250 ml, 500 ml, 1000 ml Used to: measure a set Volume very accurately http: //www. myenvirolab. com/products. asp? prodtype=30 - image source 1/3/2022 Property of CTE Joint Venture

Measuring Pipettes Description: long narrow glass pipette. Incremental measurements Common Types: 1 ml, 10 ml, 25 ml Used to: measure volumes between 125 ml Page: http: //www. proscitech. com. au/cataloguex/online. asp? page=l 4 1/3/2022 Property of CTE Joint Venture

Beakers Description: Types: Used to: www. labsafety. com- image source 1/3/2022 Property of CTE Joint Venture

Erlenmeyer Flask Description: Glassware with a cone base shape and a narrow opening Common Types: 25 ml, 50 ml, 100 ml, 250 ml, 1000 ml Used to: Not as accurate at the graduated cylinders and volumetric flasks. These should not be used when accurate measurements are needed http: //qwickstep. com/search/buy-erlenmeyer-flask. html- image source 1/3/2022 Property of CTE Joint Venture

Pasteur Pipette Description: Similar to an eye dropper Common Types: glass, disposable. 1 ml, 0. 5 ml, 2 ml, 3 ml Used to: Transfer small volumes of liquid. They are used to dispense liquid, but not to measure exact volumes. http: //www. appletonwoods. co. uk/acatalog/Plastic_Pasteur_Pipette. ht ml 1/3/2022 Property of CTE Joint Venture

Equipment Log In each lab table there is a log of all equipment. If glassware breaks note the date of the incident in the appropriate column. Equipment Date of use Date of breakag e 50 ml beaker 1/3/2022 Property of CTE Joint Venture

Closure How would you summarize to a friend who was absent today what you learned about glassware today? 1/3/2022 Property of CTE Joint Venture