# MUSY MUsk rats

Topics: Water, Volume, Mathematics Pages: 4 (536 words) Published: March 12, 2014
﻿9/22/13
I: Design
Title: The Mass of Quartz
Purpose: To determine the density slope for water and alcohol and apply the understanding to determine the volume of a quartz sample without measuring the volume or calculating it. Hypothesis: The hypothesis of this lab was by using the density of alcohol we could calculate the density of a quartz samples. Controls and Variables:

Independent variable: Volume of water and alcohol
Dependent variable: The weight of the liquid or solid
Controls: The volume of the water should be the same each trial Materials: Triple Beam Balance, Graduated cylinder, Beaker, Quartz, Distilled water, rubbing alcohol Procedure:
1. Find the mass of the empty graduated cylinder.
2. Fill then graduated cylinder the with water.
3. Measure the number of ML.
4. Put the graduated cylinder on the triple beam balance and measure the weight in grams. 5. Then subtract the weight of the graduated cylinder from the weight of the cylinder and water together. 6. Repeat steps 1-5 four more time but with a different amount of ML 7. Use this procedure for alcohol

Procedure (Quartz)
1. Measure the weight of the empty beaker
2. Fill the beaker with water and measure the ML
3. Then put your quartz sample In the water and measure the change in the water height 4. Subtract the original ML to get the mass of the quartz
5. Repeat steps 1-4 with different quartz samples
II DCP
Raw data:
Table: 1 Mass of Water Volume of DI Water (mL)
Mass of water+ graduated cylinder (g)
Mass of DI water (g)
18 mL
6.90g
25.5g
19.60g
20mL
6.90g
27.6
20.40g
25mL
14.3g
39.6g
25.3 g
30mL
14.3g
43.9g
29.65g
60mL
14.3g
73.6g
59.3g

Table: 2 Mass of Alcohol Volume of Alcohol (mL)
Mass of alcohol
40mL
14.3g
49.2g
34.9g
45mL
14.3g...

References: None