SC-1018
Solubility
Lower Sec Science · Secondary 1 · Medium · Solubility
A student dissolves 40 g of a substance in 100 cm³ of water at 20°C and obtains a clear solution. At 40°C, the solubility of this substance is 70 g per 100 cm³ of water. If the student now adds more of the substance until no more can dissolve at 40°C, what mass of the substance will remain undissolved?
- 0 g
- 30 g
- 40 g
- 70 g
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