10分鐘小測:第15章 溶液的濃度

10分鐘小測:第15章 溶液的濃度

9th - 12th Grade

10 Qs

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10分鐘小測:第15章 溶液的濃度

10分鐘小測:第15章 溶液的濃度

Assessment

Quiz

Chemistry

9th - 12th Grade

Practice Problem

Hard

Created by

Chemistry Aristo

Used 1+ times

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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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