10分鐘小測:第17章 酸和鹼的強度

10分鐘小測:第17章 酸和鹼的強度

9th - 12th Grade

10 Qs

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10分鐘小測:第17章 酸和鹼的強度

10分鐘小測:第17章 酸和鹼的強度

Assessment

Quiz

Chemistry

9th - 12th Grade

Hard

Created by

Chemistry Aristo

Used 2+ times

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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

鹼的強度取決於

A. 每個鹼分子中氫原子的數目。

B. 它溶於水時每個鹼分子所生成氫氧離子的數目。

C. 它在水中電離或離解的程度。

D. 它與酸反應時生成鹽的速率

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列哪些酸是弱酸?

(1) 檸檬酸

(2) 碳酸

(3) 亞硫酸

A. 只有(1)和(2)

B. 只有(1)和(3)

C. 只有(2)和(3)

D. (1)、(2)和(3)

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

考慮以下四種溶液:

(1):0.1 M HCl(aq)

(2):1.0 M HCl(aq)

(3):0.1 M CH₃COOH(aq)

(4):1.0 M H₂SO₄(aq)

下列哪項顯示溶液pH遞增的次序?

A. (1), (2), (3), (4)

B. (2), (4), (1), (3)

C. (3), (1), (2), (4)

D. (4), (2), (1), (3)

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

若把30 cm³的0.10 M硫酸與40 cm³的0.15 M氨水混合,下列哪項正確顯示所得溶液中[H⁺(aq)]和[OH⁻(aq)]的關係?

A. [H⁺(aq)] < [OH⁻(aq)]

B. [H⁺(aq)] > [OH⁻(aq)]

C. [H⁺(aq)] = [OH⁻(aq)]

D. [H⁺(aq)] = 2[OH⁻(aq)]

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列哪些會使0.1 M氨水的pH上升?

(1) 加入0.1 M氫氧化鈉溶液

(2) 加入固態氯化鈉

(3) 加入小量水

A. 只有(1)

B. 只有(2)

C. 只有(1)和(3)

D. 只有(2)和(3)

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

溶液X和溶液Y的pH分別是2和1。若把50 cm³的溶液X和50 cm³的溶液Y混合,所得溶液的pH是多少?

A. 0.74

B. 1.3

C. 1.5

D. 1.8

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

已知某酸X樣本和酸Y樣本的pH均是3.5。下列哪項或哪些陳述必定正確?

(1) 兩個樣本的H⁺(aq)離子的濃度相同。

(2) XY的鹽基度相同。

(3) XY的強度相同。

A. 只有(1)

B. 只有(2)

C. 只有(1)和(3)

D. 只有(2)和(3)

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