Show the following in the form of a flowchart.
1)Measuring the density of a liquid with unknown mass and volume
Answers
Answer:
EDinformatics
How to find the density of a liquid
Problem: You are given two unknown liquids. Find the density of each.
Materials: 100ml graduated cylinder, triple beam balance, calculator, 2 unknown liquids.
Procedure: 1) Find the mass of the empty graduated cylinder.
2) Pour unknown liquid #1 into the graduated cylinder to the 50 ml. level.
3) Find the mass of the graduated cylinder with 50ml of unknown liquid #1.
4) Repeat steps 1-3 for unknown liquid #2.
We can calculate density of a each liquid using the formula:
Density= Mass/Volume
where mass is that for just the liquid (you must subtract out the mass of the graduated cylinder).
Now let's calculate the densities of the two liquids using the following given data.
Liquid #1:
Given: Mass of empty graduated cylinder = 78 grams
Mass of graduated cylinder with unknown liquid #1= 128 grams.
Find:
a) Mass of just the liquid = ____
b) Volume of liquid=_____
c) Density of liquid #1 =____
Liquid #2:
Given: Mass of empty graduated cylinder = 78 grams
Mass of graduated cylinder with unknown liquid #2= 117.5 grams.
Find:
a) Mass of just the liquid = ____
b) Volume of liquid =_____
c) Density of liquid #2=____
Just like solids, liquids also have their own characteristic density.
The volume of a liquid can be measured directly with a graduated cylinder.
The molecules of different liquids have different size and mass.
The mass and size of the molecules in a liquid and how closely they are packed together determine the density of the liquid.
Just like a solid, the density of a liquid equals the mass of the liquid divided by its volume; D = m/v.
The density of water is 1 gram per cubic centimeter.
The density of a substance is the same regardless of the size of the sample.