想問下
我知道 volume of 溶質+volume of 溶劑不等於volume of solution
但係一個 volume of 某solution+volume of water等不等於volume of新既solution呢?????有無d例子咁呢><???
[chem] volume相加既問題...
2009-07-27 9:26 am
回答 (1)
2009-07-27 7:00 pm
✔ 最佳答案
這不是1+1=2的加的數. 當1ml沙(不溶於水)+10ml水=11ml体積. 當1mL乙醇+10ml水<11ml, 這是因為乙醇溶入水molecule內, 水之bonding contracted. 所以solute 與 solvent 不是1+1=2, 可能大過2, 或細過2, depend upon solute structures reacted with solvent, cause any expanding or contracting in the bond. You need to do the measurement each time. 我只是簡化來講的, 希望你understand!
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