Laboratory Techniques & Measurements

Laboratory Techniques & Measurements

Objectives:

Become familiar with several important laboratory techniques. Gain proficiency with some of the common measuring devices used in a chemistry laboratory. Determine the volume, mass, length, temperature, and density of objects and liquids

  • Length Measurements:
  • Object
  • Length (cm)
  • Length (mm)
  • Pop Can
  • 12.0
  • 120.0
  • iPhone
  • 11.7
  • 117.0
  • TV Remote
  • 16.3
  • 163.0

Temperature Measurements:

  • Hot water from tap (⁰C) – 47
  • Boiling Water (⁰C) – 61
  • Boiling Water after 5 mins.(⁰C) – 73Cold water from tap (⁰C) – 15
  • Ice Water (⁰C) – 6
  • Ice Water after 5 mins. (⁰C) – 4

Volume Measurements:

  • Test tube volume (mL) – 10
  • Number of drops in 1 mL – 9
  • Pipet volume (mL) – 4

Mass Measurements:

  • Object
  • Estimated Mass (g) – 7.

    8

  • Actual Mass (g) – 9.2

Density Measurements:

  • Mass A
  • Mass B
  • Mass A-B
  • Object
  • Graduated
  • Cylinder +
  • Substance

Hypothesis on Salt Compared to Water: The salt solution will have a greater density than pure water as the substance mass is lager.

6. Densities of Irregular Objects:

  • Mass A
  • Mass B
  • Mass B-A
  • Object
  • Graduated
  • Cylinder Volume
  • (mL)
  • Graduated
  • Cylinder + Object (mL)
  • Object Volume (mL)
  • Object Mass (g)
  • Density M/V
  • Metal bolt
  • Water Displacement
  • Method

Questions:

Some reasons for the water not boiling at 100⁰C could be: different temperature settings, not allowing enough time to fully boil and experimental error.

Get quality help now
KarrieWrites
Verified writer

Proficient in: Chemistry

5 (339)

“ KarrieWrites did such a phenomenal job on this assignment! He completed it prior to its deadline and was thorough and informative. ”

+84 relevant experts are online
Hire writer

102⁰C-100⁰C 99.2-100
100⁰C 100

2-0.8
100⁰C 100⁰

0.02 X100%-0.008X100
=2=-0.8
C. Height= 3.6, Base=4.21, Width= 1.17
Volume = bXh/w
4.21X3.6/1.17 = 13.31

Density= mass/volume
21.3/13.31 = 1.6

Density= mass/volume
19.30=26.15/V
-26.15X19.30=V
-504.69=V
V=504.69

Conclusion:

Some new things that I learned from this lab are experimental errors can drastically effect the outcome and adding a substance such as salt to water will increase the density of water.

Get to Know The Price Estimate For Your Paper
Topic
Number of pages
Email Invalid email

By clicking “Check Writers’ Offers”, you agree to our terms of service and privacy policy. We’ll occasionally send you promo and account related email

"You must agree to out terms of services and privacy policy"
Write my paper

You won’t be charged yet!

I believe I did meet the lab objectives because in result of this lab I became familiar with lab techniques, gained experience using lab measuring devices and I learned the volume, mass, length temperature and density of some objects and liquids.

Cite this page

Laboratory Techniques & Measurements. (2016, Feb 28). Retrieved from https://studymoose.com/laboratory-techniques-measurements-essay

Laboratory Techniques & Measurements

👋 Hi! I’m your smart assistant Amy!

Don’t know where to start? Type your requirements and I’ll connect you to an academic expert within 3 minutes.

get help with your assignment