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Chm CH2 Density

Chemistry Lab 1033 Chapter 2 study guide

Density is Mass(g)/Volume (l)
Mass unit often used gram (g)
Volume unit often used milliliter (ml) or cubic centimeter (cm3)
Mass in units is measured using a balance
Volume in units is measured using a graduated cylinder
meniscus the curve in the upper surface of a liquid
element a substance made from only one type of atom.the simplest substances and hence cannot be broken
compound a substance consisting of 2 or more elements, that can be broken down.
Distinguish between mass and weight Mass remain the same regardless of the environment. However weight varies from place to place.
What happen when a liquid is heated it usually expands to occupy a larger volume
Specific gravity is density of sample/density of water and has no unit
Pb lead
K potassium
I iodine
Na Sodium
N Nitrogen
O Oxygen
S Sulfur
C Carbon
Fe Iron
C2H6O Ethyl alcohol
Measure Mass of water mass of cylinder with water subtracted by the mass of empty cylinder.
volume of water use the bottom of the meniscus and the volume marking on the cylinder
Created by: YesIcan