10分鐘小測:第19章 涉及酸和鹼的容量分析

Quiz
•
Chemistry
•
9th - 12th Grade
•
Hard
Chemistry Aristo
Used 2+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
一25.0 cm³的二元酸需要36.25 cm³的1.0 M氫氧化鈉溶液來完全中和,該酸的摩爾濃度是多少?
A. 0.59 M
B. 0.73 M
C. 1.00 M
D. 1.45 M
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
某學生把0.10 M碳酸鈉溶液稀釋以製備250.0 cm³的0.010 M碳酸鈉溶液。他用儀器X來把25.0 cm³的0.10 M碳酸鈉溶液轉移至儀器Y,然後加入蒸餾水,直至到達刻度為止。下列哪個有關儀器X和儀器Y的組合正確?
A
B
C
D
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
把3.50 g的石灰石樣本溶於150 cm³的0.50 M氫氯酸中,過量的酸需要20.10 cm³的1.00 M碳酸鈉溶液來完全反應。該石灰石樣本中碳酸鈣的質量百分比是多少?
(假設石灰石樣本中的其他物質全部都不與氫氯酸或碳酸鈉溶液反應。)
(相對原子質量:C = 12.0、O = 16.0、Ca = 40.1)
A. 28.8%
B. 49.8%
C. 57.5%
D. 99.5%
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
碳酸鉀溶液需要20.00 cm³的0.05 mol dm⁻³氫氯酸來完全反應。下列哪個有關該碳酸鉀溶液的體積和濃度的組合正確?
A
B
C
D
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
五氯化磷與水如以下方程式所示反應:
PCl₅(s) + 4H₂O(ℓ) → H₃PO₄(aq) + 5HCl(aq)
把1.04 g的五氯化磷溶於蒸餾水中,以製備100.0 cm³的溶液。溶液中氫氯酸的濃度是多少?
(PCl₅的摩爾質量 = 208 g mol⁻¹)
A. 0.0100 mol dm⁻³
B. 0.0500 mol dm⁻³
C. 0.250 mol dm⁻³
D. 2.50 mol dm⁻³
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
把稀氫氧化鋇溶液從滴定管加入25 cm³盛於錐形瓶內的稀硫酸,每次加入5.0 cm³,直至過量。所生成混合物的導電性
A. 持續上升。
B. 持續下降。
C. 先上升,然後下降。
D. 先下降,然後上升。
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
考慮以下反應:
NaHSO₄(aq) + NaOH(aq) → Na₂SO₄(aq) + H₂O(ℓ)
0.0100 mol的硫酸氫鈉溶液與0.200 M氫氧化鈉溶液完全反應,所用氫氧化鈉溶液的體積是多少?
A. 20.0 cm³
B. 50.0 cm³
C. 100 cm³
D. 500 cm³
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