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3-3 酸鹼濃度

Chemistry

8th Grade

Used 2+ times

3-3 酸鹼濃度
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23 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列各離子中,哪一種代表酸性?

H+

NO3-

SO42-

OH-

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

NaCl溶液的濃度為0.01M,其pH值等於多少?

2

7

1

0

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

在氫氧化鈉溶液中,加入純水稀釋後,則其pH值會如何?

減少

增加

不變

忽大忽小

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

在鹽酸溶液中,加入純水稀釋後,則其pH值會如何?

增加

減少

不變

忽大忽小

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

純水的pH值為7,欲使pH值降低,應加入下列何種物質?

NaOH

NaHCO3

HNO3

NaCl

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列四種常吃的水果,哪一種的pH值最小?

番茄

葡萄柚

木瓜

香蕉

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列何項常見液體的pH值一定大於純水?

天然雨水

番茄汁

可樂

小蘇打水

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