SC-992
Solubility
Lower Sec Science · Secondary 1 · Medium · Solubility
A student dissolves 20 g of potassium nitrate in 100 g of water at 30 °C to form a saturated solution. From the solubility curve, the maximum mass that can dissolve at 30 °C is 30 g per 100 g of water. What will be observed?
- All 20 g dissolves and no solid remains.
- Exactly 10 g remains undissolved.
- All 20 g remains undissolved.
- The solution becomes supersaturated immediately.
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