chem lab 11

gooch crucible

filtration of precipetates

crucible

for heating substances to high temperature

funnel

a cone-shaped device used to channel liquids or fine-substances into containers with small opening

test tube

test tube holder

use to hold test tube

test tube rack

use to store test tube

test tube brush

use to clean test tube

erlenmeyer flask

use to hold, mix and heat liquids

beaker

to hold, mix, heat and pour liquids

tripod

to support glassware during heating

wire gauze

to support flat bottomed glassware fover heat source

alcohol lamp

heating, combustion and flame sterilization

iron stand

securely holds and elevate s laboratory glassware

water bath

use to incubate heat samples

suction flask

vacuum filtration

scoopula

to transfer larger solids

volumetric flask

measuring accurate volumes of liquid materials

separatory funnel

iquid-liquid extraction

florence flask

olding, containing, collecting

spot plate

facilitate minor chemical reactions on a very small scale

pycnometer

to accurately measure the density and specific gravity of liquids and finely divided solids

hydrometer

to measure specific gravity

manual sieving

to quickly separate materials, check for contaminants, or perform field tests without expensive machinery

petri dish

to culture microorganisms and cells

wash bottle

precise liquid dispensing

used for cleaning glassware

watch glass

a surface to evaporate liquids, a container for weighing solid chemicals, and a loose lid for beakers to prevent dust and contamination

spatula

use to scrape, handling micro-organism

calorimeter

to measure the heat released or absorbed during chemical reactions or physical changes

mortar and pestle

use to crush solid chemicals

crucible thong

use to transport extremely hot crucible

triple beam balance

used to measure the mass of object directly into grams

thermometer

use to measure temperature

filter paper

use to separate solids to liquids

aspirator

use to suck up fluids

pipette

measure and transport precise volume of liquid

iron ring

use to stabilize glassware and equipment

iron clamp

hold, elevate and lock object at place

bunsen burner

equipment that produce single open glass flame

graduated cylinder

used to measure precise volume of liquid

colorless

lower

colored

upper

evaporating dish

to evaporate solvents from a liquid mixture

clay triangle

used to support crucible