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Concept module

Solubility and Saturation

Keep dissolved amount, excess solid, and current capacity in one beaker so saturation reads like a visible limit instead of a slogan.

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Featured setups

Room to dissolve

Open a beaker that still has room for more solute under the current conditions.

At the limit

Open a saturated beaker with visible excess solid.

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Starter track

Step 2 of 40 / 4 complete

Solutions and pH

Earlier steps still set up Solubility and Saturation.

1. Concentration and Dilution2. Solubility and Saturation3. Acid-Base / pH Intuition4. Buffers and Neutralization

Previous step: Concentration and Dilution.

Start from track beginning

Why it behaves this way

Explanation

Solubility is the current cap on how much solute can stay dissolved. Saturation is what you see when that cap is reached and the extra material has to remain visible instead of quietly dissolving.

This bench keeps dissolved amount, excess solid, and capacity in the same beaker so concentration and solubility stay connected without collapsing into the same idea.

Key ideas

01Concentration describes how much is already dissolved per amount of solvent.
02Solubility describes the current maximum that can stay dissolved under the current conditions.
03Once the beaker saturates, adding more solute changes the excess pile more than the dissolved amount.

Frozen walkthrough

Step through the frozen example

Frozen walkthrough
Read the live beaker state rather than a detached table.

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Frozen valuesUsing frozen parameters

For the current mixture, how much solute can stay dissolved before the beaker saturates?

Solute amount

8.4

Solvent volume

1.4

Solubility limit

5.6

1. Read the current limit

The current solubility limit is 5.6 units per volume.

2. Use the solvent volume to find the current capacity

With 1.4 units of solvent, the beaker can currently hold about 7.84 units of dissolved solute.

3. Compare the total solute with the capacity

The beaker contains 8.4 units of solute, so the undissolved excess is 0.56 units whenever the total rises above capacity.

Current capacity

The beaker has reached the current dissolving capacity, so the extra material has to remain visible as excess solid.

Common misconception

If more solid is visible, the solution must always be more concentrated.

Visible solid can simply mean the system is saturated and has run out of dissolving capacity.

A saturated beaker can hold the same dissolved amount even while the total solute keeps increasing.

Mini challenge

Make the excess solid disappear without removing any solute from the beaker.

Make a prediction before you reveal the next step.

Decide whether the cleaner move is to add solvent or to raise the solubility limit before you try it.

Check your reasoning against the live bench.

You can add solvent or raise the solubility limit so more of the same solute can stay dissolved.
Both moves increase capacity. Removing solute would be a different chemistry story.

Quick test

Reasoning

Question 1 of 2

Answer from the live beaker story instead of a memorized slogan.

What does saturation most directly mean on this bench?

Use the live bench to test the result before moving on.

Accessibility

The simulation shows a solution beaker, a saturation gauge, and a visible excess-solid cue alongside controls for solute amount, solvent volume, and the current solubility limit.

A readout card reports the total solute, current capacity, dissolved amount, excess solid, and concentration so the learner can connect the visual bench to the numeric summary.

Graph summary

One graph shows how the dissolved amount changes as total solute rises, another shows how the excess solid grows after saturation, and two more show how capacity changes with solvent volume and solubility limit.

Graph hover and compare mode stay attached to the same chemistry bench instead of opening a separate chemistry-only view.