Document Details

How Does Salt Effect the Rate of Osmosis in Potato Cubes?

User Description:
For this investigation, two experiments were conducted exploring the rate of osmosis in potato cylinders. This included a validation test (experiment A) and a practical, designed by the researchers (experiment B). It was hypothesised for both experiments that as the concentration of sodium chloride (salt) increases, more water would move out of the potato cylinders resulting in a decrease in mass. To investigate this hypothesis, peeled potatoes were diced into cylinders with the dimension 2 and submerged into distilled water which was followed by different concentration of salt (0.5%, 1%, 2%, 4% and 8%). Using the initial and final masses of the cylinders, the results were recorded into a table and graphed to represent the relationship between the independent variable (concentration of salt) and the dependent variable (change in mass). For 0% and 0.5% salt solutions, the potato cylinders increased in mass. This was predicted, as these solutions were hypotonic compared to the potato cylinders. For 1%, 2%, 4% and 8% salt solutions, the potato cylinder experienced a decrease in mass. This was also predicted, as these salt solutions were hypertonic in comparison to the potato cubes. Overall, it was observed that as the concentration of the salt solution increased, more water moved out of the potato cylinders representing a negative linear trend, hence supporting the hypothesis.

Thinkswap Satisfaction Guarantee

Each document purchased on Thinkswap is covered by our Satisfaction Guarantee policy. If you are not satisfied with the quality of any document, or you believe the document was incorrectly described or categorised, Thinkswap will provide a full refund of exchange credits so you can check out another document. For more information please click here.

This student studied:
Claim a Thinkswap Bounty

Do you know if the Subject listed above has changed recently? Click report to earn free Exchange Credits!

Document Information:
15 Pages Essays / Projects < 1 Year old
Share

3 Ex Credits


Document Screenshots:
How Does Salt Effect the Rate of Osmosis in Potato Cubes?
Topics this document covers:
Chemistry Matter Alkali metals Chemical elements Desiccants Dietary minerals Reducing agents Osmosis Tonicity Saline Potato Sodium chloride
This is an Essay / Project

Essays / Projects are typically greater than 5 pages in length and are assessments that have been previously submitted by a student for academic grading.

What are Exchange Credits:

Exchange Credits represent the worth of each document on Thinkswap. In exchange for uploading documents you will receive credits. These can then be used to checkout other documents on Thinkswap.

Topics this document covers:
Chemistry Matter Alkali metals Chemical elements Desiccants Dietary minerals Reducing agents Osmosis Tonicity Saline Potato Sodium chloride
Sample Text:
This included a validation test (experiment A) and a practical, designed by the researchers (experiment B). It was hypothesised for both experiments that as the concentration of sodium chloride (salt) increases, more water would move out of the potato cylinders resulting in a decrease in mass. To investigate this hypothesis, peeled potatoes were diced into cylinders with the dimension 2 cm3 and submerged into distilled water which was followed by different concentration of salt (0.5%, 1%, 2%, 4% and 8%). Using the initial and final masses of the cylinders, the results were recorded into a table and graphed to represent the relationship between the independent variable (concentration of salt) and the dependent variable (change in mass). For 0% and 0.5% salt solutions, the potato cylinders increased in mass. This was predicted, as these solutions were hypotonic compared...
Similar Documents to How Does Salt Effect the Rate of Osmosis in Potato Cubes?

Cell Membranes and Transport Design Practical

This student studied:
SACE - Year 12 - Biology

Design practical investigating photosynthesis with the movement and transport of substances across the cell membrane.

3 Ex Credits

View Details

Biology Osmosis Practical

This student studied:
SACE - Year 12 - Biology

This practical experiment looked at the effects of concentration on the rate of osmosis in a potato cylinder. This studied the effects of hypertonic and hypotonic solutions.

3 Ex Credits

View Details

Biology Osmosis Practical Report

This student studied:
SACE - Year 12 - Biology

Abstract: A practical investigation was undertaken to observe the effects that various percentages of Sodium Chloride solutions had on osmosis. The hypothesis tested during the experiment was: If the concentration of the sodium chloride solution (%) is increased then the change in mass of the potato cubes will indicate a decrease in mass (g).

3 Ex Credits

View Details

Metal Activity Series Practical

This student studied:
HSC - Year 11 - Chemistry

Notes on the metal activity series practical for Preliminary Chemistry year 11. Includes theory, aim, materials, procedure, observations, analysis of results, conclusions, equations, validity and application.

3 Ex Credits

View Details