i am doing a science fair project in where i find which liquid makes an egg float but i have to find the density of the liquid. i know that to find the density i have to divide the mass by the volume but i can't do it because i don't know how to find the volume. can you give me an example plz.
2007-01-27 15:55:59 · 5 answers · asked by hearbeat62 2 in Science & Mathematics ➔ Chemistry
The basic equation for volume is length x width x height. When you have a cylindrical container I believe you have to take the area of the base x the height.
Example - area(A) of the base equals Pi x (radius x radius) or half the diameter times itself then multiply that by Pi(3.14)
Equation - A = Pi(r*r)
Take the area and multiply it by the height of the fluid in the container.
Equation - A*height = volume of a cylinder.
If the cylinder is 3 inches across(diameter) and the fluid reaches 6 inches in height then my volume would be.......42.39 cu. in.
A = 3.14(1.5*1.5) = 7.065 sq. in.
7.065*6 = 42.39 cu. in.
I hope this helps you. :)
2007-01-27 16:14:50 · answer #1 · answered by mazaker2000 3 · 0⤊ 0⤋
Quick and Dirty
Coke has started putting out 6 packs of 500mL bottles.
Take one of those, open it without spilling any, and once it is at ambient temperature and pressure, mark the fluid level in the bottle and call it 500mL. You'll be within 10% at least. Then you can use it as your measuring cup to get the densities. Just remember to tare the bottle before you weight!
2007-01-28 00:13:28 · answer #2 · answered by Earl T 1 · 0⤊ 0⤋
You can use a normal volume formula for shapes (lwh, 1/2bh, ect...)
because most liquids are non-compressible.
2007-01-28 00:06:09 · answer #3 · answered by Rube 2 · 0⤊ 0⤋
Formula: Length mutiplied by width and mutiplied by height
2007-01-27 23:59:57 · answer #4 · answered by Anonymous · 0⤊ 0⤋
V=h*w*b
2007-01-28 00:02:46 · answer #5 · answered by .:KUDDLEZ:. ONE& ONLY 3 · 0⤊ 0⤋