Conservation Of Mass Essay

1045 Words3 Pages
bulb-icon

Recommended: Procedures and practices in a lab

Shusanta Bhattarai
Ms. Kelley
Formal lab report
The conservation of Mass and how it’s connected to chemical reactions
Introduction
In this lab, we were looking at the conservation of matter, chemical reactions and using mass to find the number of moles present after a reaction. We had previously studied moles (measurement system) and mass. We copiously took notes on the masses of the objects after reactions and observed how the quantity would “change” after a chemical reaction. The conservation of mass is a law that states a mass will stay consistent over time and will not change until it is not combined or removed. We performed a lot of chemical reactions in this lab. The first part of the lab was putting a coiled piece of copper in silver nitrate and washing it out with water. The second and third part was also about adding chemicals and seeing the reactions. The purpose of the experiment was to determine if the values of silver and silver nitrate would stay the same. The hypothesis was that if chemical elements and compounds react the ratio would stay the same, due to the conservation of mass and the law it has.
Procedure
Originally, I was supplied with 30 cm of copper wire and a test tube. First, the wire was cleaned with steel wool.The copper wire was coiled around the full length of the test tube. The copper was then weighed. Then an empty 250 ml beaker that was labeled by my partner was weighed. A vial of white silver nitrate was also weighed. After, 2/5th of the clean beaker was filled with distilled water and the solid silver nitrate was stirred in with the water until the crystals that were formed dissolved. Then the end of the copper wire was bent so we could submerge the coil in the solution and still be able t...

... middle of paper ...

...s is attached and the mass must remain consistent over time. The chemical process did not change the quantity and it showed.
4. The ratios might be different because there might have been a flaw in the procedure. They all still surround 1 and no one in the class got one but we all got something close.
5. I think that the decanting process was the main source of contamination. Sometimes water doesn’t take out all the specks. We could buy a high tech decanting type-system and walk through each student individually so that there would be minimal chance of error.

Conclusion
We saw that no matter the chemical change we would get the same ratio. The purpose worked out in a great fashion and showed us that the quantity was almost the same. The whole class got a number that was close to one. The hypothesis was supported because the conservation of matter proved to be true.

Show More
Related

  • Characteristic Property Lab

    647 Words  | 2 Pages

    The procedure of the lab on day one was to get a ring stand and clamp, then put the substance in the test tube. Then put the test tube in the clamp and then get a Bunsen burner. After that put the Bunsen burner underneath the test tube to heat it. The procedure of the lab for day two was almost exactly the same, except the substances that were used were different. The

    Read More

  • Investigate the Osmosis of Potato Cells in Various Salt Solutions

    2516 Words  | 6 Pages

    We’d note down the weight. Then we’d get our solutions ready. We were only given a 100% solution and a 0% solution, so we had to mix them in the right ratio to get all the solutions we needed. We decided to do 5 different types of solutions so we would have a wide range of results and it would be more accurate. We’d use 100%, 75%, 50%, 25%, 0% solutions in our experiment.

    Read More

  • Lab Experiment: Calorimetry And Specific Heat

    1312 Words  | 3 Pages

    Quickly and carefully transfer the heated metal from the test tube to the water in the calorimeter.

    Read More

  • How To Write A Fertilizers Lab Report

    1207 Words  | 3 Pages

    Mass Pb(NO2)3/ MW Pb(NO3)2 to find the mass of SO4, which equaled 0.1394g, then plugged into the percentage was exactly 55.75% SO4. The begging of the experiment requested that the percentage of SO4 in their fertilizer sample be found and that is exactly what was accomplished by this experiment, and the outcome, demonstrating the ability of my group to preform the requested task presented by the

    Read More

  • Milk Macromolecules Lab Report

    683 Words  | 2 Pages

    The experiment started by labeling a piece of filter paper with my initials with the following A, B, C, oil, and H2O. I placed two drops of each unknown milk sample, vegetable oil, and H2O next to the labels on my filter paper and allow to air-dry. After these samples were dried, I placed the filter paper in a petri dish containing Sudan IV solution and stained the filter paper for one minute. I then used the forceps to remove the filter paper to the rinsing dish. Then, I rinsed the filter paper with water and collect the runoff in the dish. The last step, I placed the filter paper on the table and allowed it to

    Read More

  • Proportions Of Numbers And Magnitudes

    823 Words  | 2 Pages

    are said to be in the same ratio, the first to the second and the third to the

    Read More

  • Egg Albumen Experiment

    1251 Words  | 3 Pages

    == § Test tubes X 11 § 0.10 molar dm -3 Copper (II) Sulphate solution § distilled water § egg albumen from 3 eggs. § Syringe X 12 § colorimeter § tripod § 100ml beaker § Bunsen burner § test tube holder § safety glasses § gloves § test tube pen § test tube method = == = =

    Read More

  • Investigationg of Chemical and Physical Changes

    1153 Words  | 3 Pages

    == Refer to Chemistry Lab # 2 – Investigating Changes. No changes have been made in this experiment. Results = ==

    Read More

  • The Harcourt Essen Experiment

    1470 Words  | 3 Pages

    There is also the potential of human error within this experiment for example finding the meniscus is important to get an accurate amount using the graduated pipettes and burettes. There is a possibility that at one point in the experiment a chemical was measured inaccurately affecting the results. To resolve this, the experiment should have been repeated three times.

    Read More

  • Density And Specific Gravity Lab Report

    736 Words  | 2 Pages

    Part A of the experiment, we were measuring the density of water. In this part, we measured by difference by measuring the mass of the empty graduated cylinder which was 46.35 grams and then added 25.0 milliliters of water to it. When subtracting by difference, our mass of the water was 25.85 grams. This was close to the measurements of the water added to the graduated cylinder. The density of the water was 1.0 grams/milliliters.

    Read More

  • aristotle on change

    838 Words  | 2 Pages

    ...is theory that matter is conserved. Although its form may change, acquire something new and lose something it previously held the primarily essential matter involved in the change remains a constant variable.

    Read More

  • Conservation of Momentum Investigation

    881 Words  | 2 Pages

    ...e could add the mass piece without having them fall off. At the time of the experiment, this was not seen as a threat to our results.

    Read More

  • Importance Of Safety In The Laboratory Lab

    1101 Words  | 3 Pages

    Safety in school labs Safety remains one of the key elements in modern school labs; it is necessary for the staff to ensure the safety of all the lab users. All chemicals and equipment in the laboratory have the potential to harm if adequate safety measures are not taken into account. For lab use, you have to ensure that you follow the basic safety guidelines for the lab sessions. Always be aware of all the general safety precautions and familiarize yourself with the appropriate protective measures that can keep you safe (NIOSH, 2006). It is important to consider that serious damage could occur if the basic safety rules and regulations for lab practice are not followed.

    Read More

  • Thermodynamics

    1559 Words  | 4 Pages

    With the development of atomic and molecular theories in the late 19th century, thermodynamics was given a molecular interpretation, which the classical thermodynamics lacked. This field is called statistical thermodynamics, which can be thought of as a bridge between macroscopic and microscopic properties of systems. Statistical thermodynamics is focused around the macroscopic results. The statistical approach is to derive all macroscopic properties (temperature, volume, pressure, energy, entropy, etc.) from the properties of moving particles and the interactions between them in the given system. Statistical thermodynamics was found to be very accurate and successful; therefore it is widely used by scientists around the world.

    Read More

  • Chemistry Essay

    1217 Words  | 3 Pages

    For centuries, many scientists and researchers have pondered on the idea of combining two or more substances together to create something new. These explorations have led to the idea of what kind of reactions would occur when diverse elements are combined. This is a concept known as chemistry, a part of science that corresponds with how matter is created from different properties and the process it goes through to create a new substance. Chemistry is a scientific concept that is used in everyday life and is a crucial part in the development of new technology and substances that allow today’s quality of life. The use of chemistry branches off into many different routes, including medical related fields, agriculture, and even in weapons of

    Read More

More about Conservation Of Mass Essay

Open Document