Essay on Lab 3 Report

Submitted By chelseajimenez2
Words: 811
Pages: 4
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Barclays
Ms.Gruda

Chelsea Jimenez
October 19,2014
Finding the Density of Liquids and Irregular Solids

Introduction

Density equals the mass of substance that is divided by its volume (D=M/V).It shows how much space is taken up known as Volume. In order to find the Density of
Liquids, a graduated cylinder must be used. Using the liquids given, we’ll figure what type of liquid will float or sink, I’ll show what liquid has more dense or less dense.
We
will be determining the density of Water, Oil, Alcohol, and an Irregular solid by collecting mass, Density and Volume from all liquids and Irregular solids.
Purpose

The purpose of this lab was to determine the density of three liquids water, Alcohol, Oil.
In addition, we had to determine the density of an irregular shaped object to find out which liquid will go to the bottom (sink) or stay at the top (float) because this would help us know what liquid has more dense or less. Hypothesis

If we put oil, water and alcohol liquids into the graduated cylinder then the alcohol would be on the top, the oil will stay in the middle and the water will sink because alcohol has less dense than water which leaves water in the very bottom and oil in the middle.
Materials

●
●
●
●
●
●
●
●
●
●
●

Oil
Alcohol
Water
1 100 mL Graduated Cylinder
3 10 mL Graduated Cylinder
Beaker
Colored water
Balance
Aluminum Foil
Cylinder
Sinker

Procedure

Density of liquid

1.
2.

3.
4.

Determine and record the mass of one of the small graduated cylinders by putting the Graduated cylinder in the Scale.
Add the liquid into the Graduated Cylinder and Determine by reading the mark at the lowest point of the curve the top liquid form, but be sure to record the volume of the liquid into the nearest tenths so you could figure out the exact density of the liquid.
Determine and record the mass of the graduated cylinder and liquid
Calculate the density of the liquid to the correct number of significant figures by using D=m/v. By calculating all the of the mass from the liquids, It would help see which liquid has more dense and which one has less. Using these steps I calculated the density of Oil and realized that is has more dense than other liquids causing it to be on the top.
D=m/v = 4.8g/5.25 =
0.91 g/mL

1.
2.
3.

4.
5.
6.

Density of an Irregular shaped object
Determine the mass of the irregularly shaped object
Add water to the large graduated cylinder and determine then record the volume of the wate
Tilt the graduated cylinder and slowly lower the solid until it is completely submerged then record the new volume of the liquid by looking at the curve top of the liquid.
Calculate the Volume of the solid.
Calculate the density of the solid to the nearest hundredths.
Transfer all the data into the Data table

Data

Data Table of Liquids
Name of
Liquid

Mass of
Cylinder

Mass of
Cylinder
and Liquid

Mass of
Liquid

Volume of
Liquid

Density of
Liquid

Water

25.7g

32.6g

6.9g

6.9mL

1.0g/mL
Show More

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