Osmosis Worksheet Example - Free Printable

To solve the problem, we need to analyze the osmotic conditions in each beaker and determine the direction of water movement, fill in any missing percentages, and identify the type of solution (isotonic, hypertonic, or hypotonic). Let's break it down step by step.

Step 1: Understand Osmosis

Osmosis is the movement of water from an area of lower solute concentration (higher water concentration) to an area of higher solute concentration (lower water concentration) through a semipermeable membrane. The goal is to equalize the solute concentrations on both sides of the membrane.

Step 2: Analyze Each Beaker

#### Beaker 1:
- Cell: 90% H₂O, 10% solute
- Solution: 85% H₂O, 15% solute

Analysis:
- The cell has a higher water concentration (90%) compared to the solution (85%).
- Water will move into the cell to equalize the solute concentrations.
- Direction of Water Movement: From the solution into the cell (←).

Type of Solution:
- The solution has a higher solute concentration than the cell, so it is hypertonic.

#### Beaker 2:
- Cell: 40% H₂O, 60% solute
- Solution: 90% H₂O, 10% solute

Analysis:
- The cell has a lower water concentration (40%) compared to the solution (90%).
- Water will move out of the cell into the solution to equalize the solute concentrations.
- Direction of Water Movement: From the cell into the solution (→).

Type of Solution:
- The solution has a lower solute concentration than the cell, so it is hypotonic.

#### Beaker 3:
- Cell: 75% H₂O, 25% solute
- Solution: 80% H₂O, 20% solute

Analysis:
- The cell has a slightly lower water concentration (75%) compared to the solution (80%).
- Water will move into the cell to equalize the solute concentrations.
- Direction of Water Movement: From the solution into the cell (←).

Type of Solution:
- The solution has a slightly higher water concentration than the cell, so it is hypotonic.

Step 3: Fill in Missing Percentages

There are no missing percentages in the given data, so this step is not applicable here.

Step 4: Identify the Type of Solution

- Beaker 1: Hypertonic
- Beaker 2: Hypotonic
- Beaker 3: Hypotonic

Final Answer:

1. Direction of Water Movement:
- Beaker 1: ← (Into the cell)
- Beaker 2: → (Out of the cell)
- Beaker 3: ← (Into the cell)

2. Missing Percentages: None

3. Type of Solution:
- Beaker 1: Hypertonic
- Beaker 2: Hypotonic
- Beaker 3: Hypotonic

\boxed{
\begin{array}{c}
\text{Beaker 1: } \leftarrow \text{ (Hypertonic)} \\
\text{Beaker 2: } \rightarrow \text{ (Hypotonic)} \\
\text{Beaker 3: } \leftarrow \text{ (Hypotonic)}
\end{array}
}