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The effect of environmental factors on water using potometers

Easy Potato Osmosis Experiment: Watch How Water Changes Potato Mass!

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Easy Potato Osmosis Experiment: Watch How Water Changes Potato Mass!

Ash Lang

@ash3r.30

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A comprehensive guide explaining how to calculate percentage change in mass and conducting an osmosis experiment with potato in sugar solution to demonstrate the effect of water concentration on potato osmosis.

The percentage change calculation involves finding the difference between final and initial mass, dividing by initial mass, and multiplying by 100
The osmosis experiment uses potato discs in various solution concentrations to observe mass changes
Mass changes indicate water movement through osmosis, with increases showing water absorption and decreases showing water loss
The solution concentration where least mass change occurs matches the potato's water concentration
Results help understand how osmosis affects cell mass in different environments

04/02/2023

604

equation
The equation for percentage change in mass:
percentage change in mass = ((Final mass - initial mass) : initial
mass) X 100
2
questi

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Investigating Osmosis Through Potato Experiments

This section details the experimental procedure and interpretation of results for studying osmosis using potato discs.

Vocabulary: Osmosis is the movement of water molecules from an area of higher water concentration to an area of lower water concentration across a semi-permeable membrane.

The experimental procedure involves:

Preparing and measuring initial mass of potato discs
Placing discs in various sugar or salt solution concentrations
Measuring final mass after 30 minutes
Calculating percentage mass change

Highlight: The solution concentration where potato mass changes least indicates matching water concentrations between the solution and potato cells.

Results interpretation:

Mass decrease indicates water loss through osmosis (solution has lower water concentration than cells)
No mass change shows equal water concentrations
Mass increase demonstrates water absorption (solution has higher water concentration than cells)

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Calculating Percentage Change in Mass

This section explains the fundamental equation for calculating mass changes and provides a practical example. The percentage change calculation is essential for analyzing results in osmosis experiments.

Definition: Percentage change in mass is calculated using the formula: ((Final mass - initial mass) ÷ initial mass) × 100

Example: For a potato cylinder with initial mass 80g and final mass 100g:

((100g - 80g) ÷ 80g) × 100
(20g ÷ 80g) × 100
0.25 × 100 = 25% increase in mass

Highlight: A positive percentage indicates mass gain, while a negative percentage would indicate mass loss.

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Subjects

Biology

Organisation

Plant organisation

The effect of environmental factors on water using potometers

Easy Potato Osmosis Experiment: Watch How Water Changes Potato Mass!

Ash Lang

@ash3r.30

0 Follower

The percentage change calculation involves finding the difference between final and initial mass, dividing by initial mass, and multiplying by 100
The osmosis experiment uses potato discs in various solution concentrations to observe mass changes
Mass changes indicate water movement through osmosis, with increases showing water absorption and decreases showing water loss
The solution concentration where least mass change occurs matches the potato's water concentration
Results help understand how osmosis affects cell mass in different environments

04/02/2023

604

Biology

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Investigating Osmosis Through Potato Experiments

This section details the experimental procedure and interpretation of results for studying osmosis using potato discs.

Vocabulary: Osmosis is the movement of water molecules from an area of higher water concentration to an area of lower water concentration across a semi-permeable membrane.

The experimental procedure involves:

Preparing and measuring initial mass of potato discs
Placing discs in various sugar or salt solution concentrations
Measuring final mass after 30 minutes
Calculating percentage mass change

Highlight: The solution concentration where potato mass changes least indicates matching water concentrations between the solution and potato cells.

Results interpretation:

Mass decrease indicates water loss through osmosis (solution has lower water concentration than cells)
No mass change shows equal water concentrations
Mass increase demonstrates water absorption (solution has higher water concentration than cells)

Sign up to see the content. It's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Calculating Percentage Change in Mass

Definition: Percentage change in mass is calculated using the formula: ((Final mass - initial mass) ÷ initial mass) × 100

Example: For a potato cylinder with initial mass 80g and final mass 100g:

((100g - 80g) ÷ 80g) × 100
(20g ÷ 80g) × 100
0.25 × 100 = 25% increase in mass

Highlight: A positive percentage indicates mass gain, while a negative percentage would indicate mass loss.

Can't find what you're looking for? Explore other subjects.

Knowunity is the #1 education app in five European countries

Knowunity has been named a featured story on Apple and has regularly topped the app store charts in the education category in Germany, Italy, Poland, Switzerland, and the United Kingdom. Join Knowunity today and help millions of students around the world.

Download in

Google Play

Download in

App Store

4.9+

Average app rating

15 M

Pupils love Knowunity

#1

In education app charts in 12 countries

950 K+

Students have uploaded notes

Still not convinced? See what other students are saying...

iOS User

I love this app so much, I also use it daily. I recommend Knowunity to everyone!!! I went from a D to an A with it :D

Philip, iOS User

The app is very simple and well designed. So far I have always found everything I was looking for :D

Lena, iOS user

Easy Potato Osmosis Experiment: Watch How Water Changes Potato Mass!

Investigating Osmosis Through Potato Experiments

Calculating Percentage Change in Mass

Similar content

Can't find what you're looking for? Explore other subjects.

Knowunity is the #1 education app in five European countries

Knowunity has been named a featured story on Apple and has regularly topped the app store charts in the education category in Germany, Italy, Poland, Switzerland, and the United Kingdom. Join Knowunity today and help millions of students around the world.

4.9+

15 M

#1

950 K+

Still not convinced? See what other students are saying...

I love this app so much, I also use it daily. I recommend Knowunity to everyone!!! I went from a D to an A with it :D

The app is very simple and well designed. So far I have always found everything I was looking for :D

I love this app ❤️ I actually use it every time I study.

Easy Potato Osmosis Experiment: Watch How Water Changes Potato Mass!

Sign up to see the content. It's free!

Investigating Osmosis Through Potato Experiments

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Calculating Percentage Change in Mass

Similar content

Can't find what you're looking for? Explore other subjects.

Knowunity is the #1 education app in five European countries

Knowunity has been named a featured story on Apple and has regularly topped the app store charts in the education category in Germany, Italy, Poland, Switzerland, and the United Kingdom. Join Knowunity today and help millions of students around the world.

4.9+

15 M

#1

950 K+

Still not convinced? See what other students are saying...

I love this app so much, I also use it daily. I recommend Knowunity to everyone!!! I went from a D to an A with it :D

The app is very simple and well designed. So far I have always found everything I was looking for :D

I love this app ❤️ I actually use it every time I study.