SC-1027
Solubility
Lower Sec Science · Secondary 1 · Hard · Solubility
A student adds 40 g of a substance to 100 cm³ of water at 20°C. From the solubility data, the maximum mass that can dissolve at 20°C is 25 g per 100 cm³. What will the student observe after stirring and leaving the mixture to stand?
- All 40 g dissolves to form a clear solution.
- 25 g dissolves and 15 g remains as solid at the bottom.
- None dissolves because too much solute was added.
- Exactly half of the solute dissolves and half remains undissolved.
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