Chemistry: Lesson 4 (Density)

what is density?

a physical property that relates to how much matter (mass or grams) that can fit in a desired volume (cm³ or mL)

density formula

density = mass / volume

mass

amount of material in an object. measures with a balance, usually in grams

volume

amount of space an object occupies. measured using a graduated cylinder or is determined by calculation using the dimensions of the object. volume is measured in cm³ or mL.

finding volume (prism)

lwh

volume (cylinder)

v = πr²h

volume of a liquid

measure the volume of a liquid with a graduated cylinder

volume of an irregularly shaped object

subtract initial amount and new amount

guess method for calculations

g- given

u- unknown

e- equation

s- substitute and solve

s- statement