下列為濃度相同、體積為 500 mL 的水溶液,哪一杯水溶液所解離的粒子總數最多?[96. 基測Ⅰ]
酸鹼鹽

Quiz
•
Chemistry
•
8th Grade
•
Hard
陳 芝佑
Used 11+ times
FREE Resource
21 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
葡萄糖(C6H12O6)
甲醇(CH3OH)
氫氧化鈉(NaOH)
醋酸(CH3COOH)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列關於電解質在水中解離之敘述,何者正確?[97. 基測Ⅰ]
正離子的總個數必等於負離子的總個數
正離子的總質量必等於負離子的總質量
正離子的總電量必等於負離子的總電量
溶液中氫離子的濃度必等於氫氧根離子的濃度
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
阿永取 1L 的 0.5M 氯化鋇(BaCl2)水溶液與 1L 的 0.5M 硫酸鈉(Na2SO4)水溶液混合,立刻產生白色沉澱。他將溶液過濾,取出沉澱物進一步實驗,確認成分為硫酸鋇,含量為 0.5 莫耳,而過濾後的澄清濾液,經測試發現在室溫時具有良好的導電性,則濾液中「主要的」導電粒子為下列何者?〔104.會考〕
H+ OH-
Na+ Cl-
Ba2+ Cl-
Na+ SO42-
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
有食鹽、碳酸鈉與蔗糖三種固體,任意標示為甲、乙、丙,以如表的實驗步驟檢驗並記錄實驗結果。依結果判斷,甲、乙、丙依序為何種物質?〔100. 基測Ⅱ〕
食鹽、蔗糖、碳酸鈉
碳酸鈉、蔗糖、食鹽
蔗糖、碳酸鈉、食鹽
碳酸鈉、食鹽、蔗糖
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如圖為實驗裝置之示意圖,某鹽類溶於水後解離為 4 個甲粒子與 8 個乙粒子,其中甲和乙均為帶電的粒子。若已知乙為,則下列有關此杯水溶液的敘述何者正確?〔95. 基測Ⅰ〕
甲可能為Na+
未通電時,甲和乙均分散於水中且靜止不動
水溶液中,負電荷的總電量多於正電荷的總電量
通電後,甲粒子會向b電極移動、乙粒子會向a電極移動
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小蘭對食鹽水可導電,但糖水不導電現象的解釋,下列何者正確?〔99. 基測Ⅰ〕
食鹽水中含鈉原子,屬於金屬,故能導電
糖水的濃度太低,所以不導電,並增高濃度即可導電
糖水的組成元素碳、氫、氧均為非金屬,所以不導電
食鹽在水中解離成帶電荷的鈉離子及氯離子,故可導電
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
依內容判斷,將次氯酸鈣與水混合,下列何者是最適合與安全的方式?〔103. 會考〕
因為是放熱反應,所以應將大量水緩緩加入次氯酸鈣中
因為是放熱反應,所以應將次氯酸鈣緩緩加入大量水中
因為是吸熱反應,所以應將大量水緩緩加入次氯酸鈣中
因為是吸熱反應,所以應將次氯酸鈣緩緩加入大量水中
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