Chemistry: 2.4 Choose Your Tools

Today we'll go go over some of the proper glassware in chemistry and how to use it. Remember, no matter how tasty any of the chemicals look, you probably shouldn't drink them. Oh and only fools try to pour things out of TC glassware. 

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ScienceChemistry

Transcript

00:26

lab equipment to do something it wasn't designed to do but when conducting

00:31

experiments you're sometimes dealing with super small measurements if you

00:35

pour some of liquid a into beaker B and a few drops of liquid a get left behind [Scientists using micropipette]

00:39

it could clearly throw off the results of your experiments which is why there

00:44

are pieces of glassware specifically designed to leave no traces of anything [Chemicals in lab glassware]

00:48

behind well these are marked td4 to deliver their job is to yep you guessed

00:55

it deliver stuff your mailman wouldn't be doing a very good job if you only [Mail man delivering letters]

00:59

delivered most of your mail right well same dealio with glassware if you're

01:04

using something marked TD you can bet your boots that nothing will be left in

01:09

it by the time you're finished pouring it out on the other hand there are other

01:12

types of glassware that are designed to have stuff emptied into them and these

01:16

are marked TC for to contain well these are for holding storing and measuring [Substance poured into beaker]

01:22

substances but aren't so great at being emptied without holding on to at least a

01:26

few drops of whatever was inside of them they're pack rats those guys well there

01:31

are also pieces of equipments that are more or less precise than others you [Glassware waving]

01:35

should be able to see on whatever measuring device you're using an

01:38

indication of the things precision if a graduated cylinder says plus or minus [Cylinder wearing graduation cap]

01:42

one milliliter then you can assume that any measurements taken are correct

01:47

give or take one milliliter this cylinder would be more precise than a

01:52

beaker reading plus or minus five milliliters so if you're looking to hit

01:56

the nail right on the head a graduated cylinder would be the way to go got it [Man strikes nail into mans head]

02:00

have you ever heard someone described football of the game of inches

02:03

well chemistry is a game of milli pretty much if you're off by even a [Boy kicks a football]

02:07

fraction you're not going to get into the end zone

02:10

so be focused be vigilant and for goodness sakes don't do the dishes with [Girl vacuuming]

02:14

a vacuum cleaner come on people