Lab Reports

Today we will be working on writing the Density lab report. Please get a computer up and running.

Keystones: 3.2.B

During the test you may use: Conversion sheet Prepared index card Calculator Drawing implements

Review for the chapter 1+2 Test

Standards, 3.1.b,c,d , 3.4.c

Options for Saving.

Local computer Network Thumb drive Google Docs

Keystones: 3.2.B

Options for Lab Reports.

Word Document Power point/keynote Google Document

Keystones: 3.2.B

Purpose/Introduction

The purpose of this laboratory is to determine the density of an object. We will also learn to use a Vernier Caliper and a mass balance.

Keystones: 3.2.B

Theory

Define Density Vernier Caliper Mass Balance

Keystones: 3.2.B

Experimental Technique

List procedures This is a good place to include pictures of the lab setup, apparatus, materials, etc. No Data in this section.

Keystones: 3.2.B

Data and Analysis

Mass (g) Length (cm) Diameter(cm) Volume (cm3) Density (g/cm3) Density (g/cm3) accepted % error

Keystones: 3.2.B

Data and Analysis

Always include sample calculations. Learn to use equation editor.

V= π4d 2L

V= π4

1.61cm( )2 5.25cm( )

V=10.7 cm3

Keystones: 3.2.B

Data and Analysis

Always include sample calculations. Learn to use equation editor.

€

ρ = m /v

ρ =56.23g

36.11 cm3

ρ =1.557g /cm3

Keystones: 3.2.B

Comparing Results

% Error is used to compare a measured value with an accepted value

€

% error =exp− accacc

×100%

Keystones: 3.2.B

Conclusion

Summarize your results and discuss sources of error.

Keystones: 3.2.B

Making the Grade

Component Value

Purpose 5 Theory 5 Experimental Tech. 5 Data Table 5 Calculations 5 Conclusion 5 Organization/quality 5

Keystones: 3.2.B