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Some students investigated the effect of different concentrations of sugar in four drinks, A, B, C, and D, on the movement of water across a partially permeable membrane. The students:

- Made four bags from artificial partially permeable membrane.
- Put equal volumes of 5% sugar solution in each bag.
- Weighed each bag containing the sugar solution.
- Placed one bag in each of the drinks, A, B, C, and D.
- After 20 minutes, removed the bags containing the sugar solution and weighed them again.

(i) The bag in drink A got heavier after 20 minutes. Explain why.

- A contains 0.1% sugar solution.
- B contains 4.2% sugar solution.
- C contains 6.9% sugar solution.
- D contains 10.6% sugar solution.

Answer :

The bag in drink A got heavier after 20 minutes because of a process called osmosis.

Option A is correct.

What is Osmosis?

Osmosis is described as the movement of water through a partially permeable membrane from an area of lower solute concentration to an area of higher solute concentration. In this case, the bags contain a 5% sugar solution, and the drinks have different sugar concentrations:

The critical point to understand is that water moves across the partially permeable membrane to equalize the solute concentration on both sides. In this context:

In drink A (0.1% sugar solution), the bag contains a higher sugar concentration (5%) compared to the drink, so water moves into the bag to dilute the sugar solution, making the bag heavier.

In drinks B, C, and D, the bags have a lower sugar concentration (5%)

Learn more about Osmosis at:

https://brainly.com/question/2811191

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Rewritten by : Barada

Answer:

Concentration of sugar in the bag was higher than in the drink or higher concentration of water outside the bag or in the drink boiling tube so water moved in (to the tubing by osmosis.

Explanation:

Concentration of sugar in the bag was higher than in the drink or higher concentration of water outside the bag or in the drink boiling tube so water moved in (to the tubing by osmosis.