• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Density of Alcohol Lab

Extracts from this document...

Introduction

Emre Çobanoğlu 11-G

Density of Ispirto

AIM

The aim of this experiment is to determine the density of ispirto.

INTRODUCTION

Density is the concentration of mass in something. Often the material is homogeneous so its density is unique to that material.

Density is defined by:

Density=mass/volume

Density=> kg m-3 and g ml

Mass=> kilograms (kg) and grams (g)

Volume=> milliliter (ml) =centimeter cube (cm3) and meter cube (m3)

The SI unit for the final result is kg m-3.

If we can measure the masses and volumes of ispirto, we can draw a graph of mass vs volume and its slope should be its density.

The independent variable is volume and the dependent variable is mass.

The controlled variable is the mass.

INSTRUCTIONS

In this experiment the masses and volumes of ispirto will be measured.

...read more.

Middle

4

94.8

40

5

102.8

50

6

110.4

60

7

117.8

70

8

125.7

80

9

133.6

90

10

141.1

100

11

147.7

110

12

154.0

120

Mass of the beaker = 65.1 +- 0.1 g

Processed Data

Trial#

Mass (g) +- 0.1

Ispirto

...read more.

Conclusion

IMPROVING THE INVESTIGATION

The beam balance should be oiled really well in order to decrease the friction to minimum and the results will be more precise and this will also decrease the systematic errors. If we were using one beaker the amount of lost ispirto during transferring would be decreased, so the results would be more accurate. If we have an eyedropper we can be more precise about the value on the graduated cylinder. Instead of looking the value on the graduated cylinder with eye, a laser pointer could be used. In order to decrease the effect of random errors more number of trials should be made. There could be a time limit for each trial, so the amount of ispirto lost into air would be less.

...read more.

This student written piece of work is one of many that can be found in our International Baccalaureate Physics section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related International Baccalaureate Physics essays

  1. Physics lab - Cantilever Beam

    a: 0.02 � 1.04 = 0.01923076923 Relative error of b: 0.02 � 0.32 = 0.0625 Sum of Relative errors: 0.01923076923 + 0.0625 = 0.08173076923 Absolute Uncertainty: 0.08173076923 � 3.25 = � 0.265 � � 0.3 Final Answer: 3.3 � 0.3 (gradient)

  2. Experiment on looking at enthalpy of solutions

    203,00 15,10 15,20 15,15 204,00 15,20 15,20 15,20 205,00 15,10 15,20 15,15 206,00 15,10 15,20 15,15 207,00 15,10 15,20 15,15 208,00 15,10 15,20 15,15 209,00 15,10 15,20 15,15 210,00 15,10 15,20 15,15 211,00 15,10 15,20 15,15 212,00 15,10 15,20 15,15 213,00 15,10 15,20 15,15 214,00 15,10 15,10 15,10 215,00 15,10

  1. Precision Lab. Question: What is the density of 2 unknown liquids, and how ...

    Pour out the graduated cylinder, and wash and dry it. 8. Repeat steps 3-6 for the other unknown liquid and the ethyl alcohol. Data: Volume (mL) (note: this is only the objective volume) Liquid A (g) Liquid B (g)

  2. Energy density experiment - Aim: To determine the energy density of ethanol

    175.44 42 52 170.45 347.34 1.0 1 184.21 183.21 22 42 170.45 346.94 2 183.21 182.21 42 59 170.45 346.94 3 182.21 181.21 59 79 170.45 346.94 1.5 1 178.28 176.78 21 50 170.45 347.51 2 176.78 175.28 50 81 170.45 347.51 3 175.28 173.78 22 53 170.45 347.42 2.0

  1. DCP+CE Energy Density of Ethanol

    � (0.01+0.01) = 0.64g�0.02g Uncertainties for change in temperature Change in temperature = final reading - initial reading = 54�C�0.2�C - 24��0.2C� = (54 - 24) � (0.2+0.2) = 30�C�0.4�C Table 5. Average of the Data Data Calculations Average Change in mass of spirit burner = 0.68 0.68g�0.020g Change in

  2. Energy Density of Ethanol

    � (0.01+0.01) = 0.64g�0.02g Uncertainties for change in temperature Change in temperature = final reading - initial reading = 54�C�0.2�C - 24��0.2C� = (54 - 24) � (0.2+0.2) = 30�C�0.4�C Table 5. Average of the Data Data Calculations Average Change in mass of spirit burner = 0.68 0.68g�0.020g Change in

  1. Physics lab - density

    Dividing 251.7 by 30, we get 8.39. Thus, = (8.39 � 0.1) g cm-3 = (8.4 � 0.1) g cm-3 Below are the results for the readings for the aluminum materials: Table 2 Material Mass m/g ?m = � 0.1 g Volume v/cm3 ?v = � 3 cm3 Density ?/g cm-3 ??

  2. HL Physics Revision Notes

    These electrons are stimulated to fall down and emit light of a particular frequency Or: Lower energy level electrons are pumped up to higher energy levels and stimulated to fall to energy levels corresponding to specific frequencies, producing laser light.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work