chemistry - safety and lab equipment: semester 1

wear what?

safety googles

know how to use the __________ station

eyewash

wear what (clothing)?

apron or lab coat

tie back what?

long hair

what are things you cannot wear?

• long sleeve clothing

• loose jewelry

• no open toe shoes

wear __________ gloves

protective

use hot ________ or ________ to handle equipment

mitts, tongs

what should you always inspect?

glassware

never use what kind of glassware?

chipped or cracked

where should you never place glassware?

on the edge of the lab bench

never return _________ chemicals to _________ container

unused, original

label all _________ and _______ _________

beakers, test tubes

do not ______ chemicals unless __________ to do so

mix, instructed

if a chemical ______ ______, notify the ___________ immediately

spills out, instructor

do ______ pour water into strong ______

not, acids

what is an ectothermic reaction?

when you pour water into strong acids

can the substances splatter?

yes

avoid using _______ flames

open

when heating a chemical in a test tube, point _______ and end always _______ from yourself and others

open, away

follow proper disposal instructions

ok

electronic balance >

for measuring mass

thermometer >

for measuring temperature

test tube >

for heating a small amount of substance

test tube holder >

for holding an individual test tube

beaker >

pouring liquids for heating or mixing substances; not for measuring

erlenmeyer flask >

same definition as before

wire mesh/gauze >

to protect the bottom of a beaker or flask from flame; to support a beaker or flash on a ring clamp

graduated cylinder >

for measuring and pouring liquids; NOT for heating or mixing substances

tweezers/forceps >

for plucking or handling small objects

beaker tongs >

for removing and holding a hot beaker

ruler >

for measuring length or distance

iron ring clamp >

for holding a flash, a beaker, or a test tube on a ring stand

test tube clamp >

same as answer before

ring stand >

platform holds heating unit; pole holds clamps

funnel >

to aid in pouring a liquid from a wide-mouth container to a small-mouth container; to filter substances when filter paper is used

test tube rack >

for holding on or more test tubes

eye dropper >

for transferring a small amount (drops) of liquid

safety goggles >

to protect the eyes

test tube brush >

for cleaning the inside of a test tube

bunsen burner >

for heating, sterilization, and combustion

glass stir rod >

to mix or stir substances, made of glass to resist heat, stains corrosion