國八理化水溶液:－2016阿基師年菜食譜大全 , 家常年菜食譜大全 , 素食年菜食譜大全 , 簡易年菜食譜大全 , 年菜食譜 , 年菜食譜做法 , 阿基師年菜食譜 ,

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國八理化水溶液

Sep 28th 2013, 10:28

1.
A 因為它本來是飽和溶液也就是100% 就算倒掉了也還是100%

B 蒸發10G的水只會有讓他的些許固體析出但濃度還是100%

C 加NACL也是沒用的都已經飽和了所以不會繼續溶濃度還是100%

(答) D加水的話應為他是飽和加100G水溶了6G 達飽和也就是100G水最多溶6G

再加水可以讓他溶更多但已沒固體可溶所以濃度改變

2.水量是甲小於乙但是都有一樣5G沉澱

A 不可能有同樣的沉澱量是錯的!! 水量乙大於甲只要改變溫度OR壓力就有可能

達到兩杯相同的沉澱

(有問題答案) B 因為有沉澱所以是飽和溶液，重量百分濃度相同都是100% 但是

這裡指的是啥我不知

(答) C 同(A)

D 不同溫度的溶解度不同所以不會是相同水量

參考資料：腦袋

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