10分鐘小測:第15章 溶液的濃度
Quiz
•
Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Hard
Chemistry Aristo
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
把6.05 g的硫酸鎂固體溶於水中,以製備250.0 cm³的溶液。這溶液的摩爾濃度是多少?
(相對原子質量:H = 1.0、O = 16.0、Mg = 24.3、S = 32.1)
A. 0.100 mol dm⁻³
B. 0.201 mol dm⁻³
C. 1.26 mol dm⁻³
D. 1.52 mol dm⁻³
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
把17.1 g的硫酸鋁粉末完全溶於水中,以製備0.50 M硫酸鋁溶液。這溶液的體積是多少?
(相對原子質量:O = 16.0、Al = 27.0、S = 32.1)
A. 100 cm³
B. 150 cm³
C. 200 cm³
D. 500 cm³
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪些溶液含相同數目的離子?
(1) 15 cm³的0.8 mol dm⁻³碳酸鈉溶液
(2) 12 cm³的1.0 mol dm⁻³硫酸銨溶液
(3) 10 cm³的1.8 mol dm⁻³硝酸銨溶液
A. 只有(1)和(2)
B. 只有(1)和(3)
C. 只有(2)和(3)
D. (1)、(2)和(3)
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
正常空腹血糖濃度介乎3.9 × 10⁻³ mol dm⁻³至5.6 × 10⁻³ mol dm⁻³。下列哪個質量的葡萄糖溶於1.0 dm³的血液時,所得出的濃度在這範圍內?
(葡萄糖的摩爾質量 = 180 g mol⁻¹)
A. 0.090 g
B. 0.18 g
C. 0.90 g
D. 9.0 g
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
以下哪個溶液可剛好與20 cm³的0.05 M氫氯酸完全反應?
2HCl(aq) + Na₂CO₃(aq) → 2NaCl(aq) + CO₂(g) + H₂O(ℓ)
A. 10 cm³的0.05 M碳酸鈉溶液
B. 10 cm³的0.10 M碳酸鈉溶液
C. 40 cm³的0.05 M碳酸鈉溶液
D. 40 cm³的0.10 M碳酸鈉溶液
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
100 cm³的0.100 M氫氧化鈣溶液中,氫氧化鈣的質量是多少?
(相對原子質量:H = 1.0、O = 16.0、Ca = 40.1)
A. 0.571 g
B. 0.741 g
C. 1.31 g
D. 1.48 g
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
20.0 cm³的0.050 mol dm⁻³氯化鈣溶液中所含離子的摩爾數是多少?
A. 0.0010 mol
B. 0.0020 mol
C. 0.0030 mol
D. 0.0050 mol
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