Preview

Sample Scientific Paper

Satisfactory Essays
Open Document
Open Document
587 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Sample Scientific Paper
DETERMINATION OF DENSITIES Claudia S. Camacho C/Y/S

Use Arial 12)

DE LA SALLE HEALTH SCIENCES INSTITUTE General Education Department Dasmariñas City. Cavite

( Use Arial 10)
ABSTRTACT

The objectives of this experiment were to determine the densities of some solids and liquids and to apply the rules of significant figures in computing laboratory data. For liquids, a dry, empty 100-ml graduated was weighed. Fifty ml of water was placed in it, then weighed again. The same was done for other liquid samples. The mass of the liquid sample was determined by subtracting the mass of the empty graduated cylinder with the mass of the cylinder and liquid. For the density of solids, the rectangular block was weighed and the volume was determined by measuring the length, width and thickness. For spherical solid, the circumference or diameter was measured and using the specific formulas, their volume was determined. For irregular solids, the volume was determined by water displacement method using a graduated cylinder. ( Write your results here. For example) It was noted that the experimental density of water which was ___ gave a ___% error from the standard value of 1.0 g/ml. Ethanol gave a ___% error from the standard value of ___. For coconut oil, the error is ___ based on the standard value of ___. Rectangular block had a density of 0.856 g/ml, which indicates that it will float on water. The pebble had a density of 1.325 g/ ml suggesting that it will sink in water. The densities of objects determines whether they are pure or not and also whether they will sink or not in a given equal volume of liquid.

INTRODUCTION

Densities of substances etc. (These maybe researched in books, scientific journals, etc)

METHODOLOGY

For densities of liquids, a 100-ml empty and dry graduated cylinder was weighed using a triple beam balance. Fifty ml of water was placed in



References: White, Robert D, General Inorganic Chemistry, National Bookstore Publishing House, Manila, Philippines, 2010 (Or websites)

You May Also Find These Documents Helpful

  • Satisfactory Essays

    Calculate the density of the unknown liquid for each trial. (Divide the mass of the liquid calculated above by the volume of the liquid.)…

    • 709 Words
    • 3 Pages
    Satisfactory Essays
  • Good Essays

    CHM130 Lab 6

    • 1556 Words
    • 6 Pages

    - Each liquid that was used in Part I has its own independent density. Density being the relationship between the mass and volume of a substance. In this portion of the lab we explored relative density, each liquid compared to the others. The corn syrup was the most dense, in comparison to the other liquids. Whereas the vegetable oil was the least dense compared to the other liquids. The liquids in between followed this same principle in their respective orders.…

    • 1556 Words
    • 6 Pages
    Good Essays
  • Good Essays

    6.03 Calorimetry Lab

    • 356 Words
    • 2 Pages

    Repeat this process, but now using 8.6 grams of sugar instead of 4.3; again, record the density. Repeat the process again with 17.1 grams…

    • 356 Words
    • 2 Pages
    Good Essays
  • Powerful Essays

    CHM130 Lab 2

    • 1057 Words
    • 5 Pages

    4. Looking at your measurements for the volumes of water in the 10-mL and 50-mL graduated cylinders, are your values identical? Discuss at least two reasons why the measurements were not identical.…

    • 1057 Words
    • 5 Pages
    Powerful Essays
  • Satisfactory Essays

    FLVS homeschool

    • 424 Words
    • 2 Pages

    2. Calculate the density (g/mL) of the unknown liquid (B) for each trial. (Divide the mass (g) of the liquid calculated above (A) by the volume (mL) of the liquid [2])…

    • 424 Words
    • 2 Pages
    Satisfactory Essays
  • Powerful Essays

    Nt1310 Unit 6 Lab Conclusion

    • 2742 Words
    • 11 Pages

    For the purposes of this experiment, the mass will be measured using a digital balance and the volume will be measured directly using a ruler and calculated using the volume formula {fig.1} for a cylinder.…

    • 2742 Words
    • 11 Pages
    Powerful Essays
  • Better Essays

    chem lab report

    • 1425 Words
    • 7 Pages

    2. To determine the densities of water, an unknown liquid, a rubber stopper, and an unknown rectangular solid.…

    • 1425 Words
    • 7 Pages
    Better Essays
  • Better Essays

    AP phyiscs lab

    • 893 Words
    • 4 Pages

    III. Procedure- The first thing one must do to identify which substance is which is to calculate the densities. To do this, one must take the mass and volume of each individual substance. Starting with mass, one can use the triple beam balance. Make sure the balanced is zeroed. Once that is true, place the object onto the balance a carefully find the mass of the object. Repeat and record the results found of each individual substance. To find the volume, one can use the water displacement method. One will fill up a graduated cylinder with water to a specific amount. 20 mL is sufficient. Once completed, one will drop one of the substances into the graduated cylinder and record how far the water level rises. If it starts at 20mL and rises to 22mL then the volume of the substance is 22mL minus 20mL, so 2mL. Repeat and record the results found of each individual substance.…

    • 893 Words
    • 4 Pages
    Better Essays
  • Satisfactory Essays

    lab3c chem11

    • 314 Words
    • 2 Pages

    The first objective of this lab is to make measurements of mass and volume for 3 different liquids. The second objective is to analyze the data by means of graphing technique. The last objective for this lab is to determine a mathematical relationship between mass and volume for each liquid.…

    • 314 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Lab 1.07

    • 414 Words
    • 2 Pages

    2. Calculate the density of the unknown liquid for each trial. (Divide the mass of the liquid calculated above by the volume of the liquid.)…

    • 414 Words
    • 2 Pages
    Satisfactory Essays
  • Powerful Essays

    2. Calculate the density of the unknown liquid for each trial. (Divide the mass of the liquid calculated above by the volume of the liquid.)…

    • 732 Words
    • 3 Pages
    Powerful Essays
  • Powerful Essays

    Bags of Reactions Lab

    • 712 Words
    • 3 Pages

    1. Measure 25mL of water and put into a resealable bag. Flatten air out of the bag and seal it. Record the mass in Table 1.…

    • 712 Words
    • 3 Pages
    Powerful Essays
  • Satisfactory Essays

    Lab essay

    • 463 Words
    • 2 Pages

    Calculate the density of the unknown liquid for each trial. (Divide the mass of the liquid calculated above by the volume of the liquid.)…

    • 463 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Seven Layer Denisty

    • 736 Words
    • 3 Pages

    Most of the research I did for this experiment was online. I found a lot of different information about the densities of different liquids. One web site that was most helpful was stevespanglerscience.com. I learned how different liquids have different densities. The same amount of oil has a different density than the same amount of water, for example. I also watched a video on youtube.com showing how the experiment works. Some liquids that have different densities are baby oil, vegetable oil, water, milk, dawn dish soap and maple syrup. Each one can be measured out in the same amount, but will have different densities.…

    • 736 Words
    • 3 Pages
    Good Essays
  • Better Essays

    Density Formal Report

    • 1060 Words
    • 5 Pages

    Determine density of a product for a plastic manufacturing facility. Provide quality control by making sure the physical properties are within design specifications. Density is defined as the ratio of an object’s mass to its volume, measured by dividing mass by volume (density = mass/volume). This was accomplished using two different experimental methods, displacement and floatation. The theory is that both methods should have the same density results; the goal is to determine which method is “best”.…

    • 1060 Words
    • 5 Pages
    Better Essays

Related Topics