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Formal Chemistry Lab Reports, Lab Reports of Chemistry

It consist of procedure, data and conclusion

Typology: Lab Reports

2020/2021

Uploaded on 05/12/2021

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Formal Chemistry Lab Reports
In writing laboratory reports, follow the outline listed below, making sure to write reports in a
concise, yet complete and clear manner.
Important Notes:
*Be sure to use third person, past tense, passive voice, and proper grammar!
e.g.-the solution was prepared by…or The solutions were made using…
**Don't use acronyms until you have first named the substance or technique and cited its
acronym.
e.g. potassium acid phthalate (KHP)
* Typed reports should be single-spaced; handwritten reports should be done clearly in ink on a
non-spiral edged paper (preferably on a a carbon-copy laboratory research notebook).
The Report
Title: List the title of the experiment as given at the top of the cover page of the laboratory
procedure packet for that experiment.
Objective (or Purpose): Use a single sentence to state explicitly the specific goal of the
experiment and the analytical method used.
e.g.- The objective of this experiment was to use Beer's Law to determine the concentration of
Cr(III) in an unknown.
* Instrumentation (if applies): List the manufacturer, model number, and general type(s) of all
the instruments employed in the experiment.
e.g. Spectronic- 21 vis spectrometer
Procedure: Briefly but thoroughly describe the following in a general manner:
How solutions were obtained or prepared and used in analysis
Amount(s) of substance(s) used
Volume and concentrations of solutions if required by instructor
Measurement process
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Formal Chemistry Lab Reports

In writing laboratory reports, follow the outline listed below, making sure to write reports in a concise, yet complete and clear manner.

Important Notes:

*Be sure to use third person, past tense, passive voice, and proper grammar!

e.g.-the solution was prepared by…or The solutions were made using…

**Don't use acronyms until you have first named the substance or technique and cited its acronym.

e.g. – potassium acid phthalate (KHP)

  • Typed reports should be single-spaced; handwritten reports should be done clearly in ink on a non-spiral edged paper (preferably on a a carbon-copy laboratory research notebook).

The Report

Title: List the title of the experiment as given at the top of the cover page of the laboratory procedure packet for that experiment.

Objective (or Purpose): Use a single sentence to state explicitly the specific goal of the experiment and the analytical method used.

e.g.- The objective of this experiment was to use Beer's Law to determine the concentration of Cr(III) in an unknown.

  • Instrumentation (if applies): List the manufacturer, model number, and general type(s) of all the instruments employed in the experiment.

e.g. – Spectronic- 21 vis spectrometer

Procedure: Briefly but thoroughly describe the following in a general manner:

How solutions were obtained or prepared and used in analysis Amount(s) of substance(s) used Volume and concentrations of solutions if required by instructor Measurement process

Other pertinent experimental aspects

*the procedure can be in a written out or flow chart format, depending on instructor preference.

Written Out:

Standard solutions were made by appropriate dilutions of an aliquot of…

Flow Chart:

Round bottom addition

flask funnel

Data and Observations: List the data and computed results in a simple, concise, yet very clear form (usually in a well-labeled form).

Calculations- submit only one set of detailed mathematical manipulations of each type. There is no need to show every single calculation – all other values appear in data tables.

  • Data tables- list calculated values in their appropriate format as below.

Single entry

Weight of KH 2 PO 4 = 0.4374 g

Molarity of NaOH = 0.1000 M

Measurements of a series of solutions

Cr (III) Concentration, M Absorbance

0.0100 0.

0.0200 0.

0.0300 0.

0.0500 0.

Unknown #3 0.

50 mL 3M H 2 SO 4

0.5gHgS) 4

10mL 2-methyl-3-butyn-2-ol

Heart rxn flask, stir until mercuric salt dissolves

DO NOT MERELY REWRITE RESULTS!

The Writing Center Clarion University of Pa. ©