Friday, July 24, 2015

What are 11 laboratory tools and their uses?

1. Beaker- used to hold liquid and solid samples while conducting experiments


2. Bunsen Burner or Hot Plate- used as a source of heat during experiments


3. Graduated Cylinder- used to obtain exact measurements in mL of liquid samples


4. Pipette- used to transfer and dispense liquid samples


5. Test Tube- used to hold small amounts of samples 


6. Wash Bottle- used to dispense small amounts of distilled water during experiments


7. Balance- used to calculate mass of a substance in grams


8. Wire Gauze- placed on top of a ring to support a beaker above a flame; allows for uniform heating of the sample in the beaker


9. Ring Stand and Rings- used to hold glassware usually above the bunsen burner


10. Erlenmeyer Flask- similar to a beaker, but contains a smaller mouth opening; used to hold substances and contain reactions


11. Clay Triangle- placed onto a ring and is used to hold and support evaporating dishes, crucibles, and watch glasses

No comments:

Post a Comment

find square roots of -1+2i

We have to find the square root of `-1+2i` i.e. `\sqrt{-1+2i}` We will find the square roots of the complex number of the form x+yi , where ...