phenolphthalein

[美]/fɪˈnɒlθəliːn/
[英]/fɪˈnɑlθəlin/
词频: 极高

释义

n.一种用作pH指示剂的化合物
词形变化

短语搭配

phenolphthalein indicator

酚酞指示剂

phenolphthalein solution

酚酞溶液

phenolphthalein test

酚酞测试

phenolphthalein color

酚酞颜色

phenolphthalein endpoint

酚酞终点

phenolphthalein reaction

酚酞反应

phenolphthalein ph

酚酞 pH

phenolphthalein usage

酚酞使用

phenolphthalein experiment

酚酞实验

phenolphthalein properties

酚酞性质

例句

the solution turned pink when phenolphthalein was added.

当加入酚酞时,溶液变成粉红色。

phenolphthalein is commonly used as a ph indicator.

酚酞常用作pH指示剂。

in the laboratory, phenolphthalein helps determine acidity.

在实验室中,酚酞有助于确定酸度。

phenolphthalein changes color at a ph of around 8.2.

酚酞在pH值约为8.2时变色。

many chemistry experiments utilize phenolphthalein for titrations.

许多化学实验利用酚酞进行滴定。

phenolphthalein can be used to test the strength of a base.

酚酞可用于测试碱的强度。

students often learn about phenolphthalein in chemistry class.

学生们通常在化学课上学习酚酞。

to demonstrate a reaction, add phenolphthalein to the solution.

为了演示反应,向溶液中添加酚酞。

phenolphthalein is a key reagent in acid-base chemistry.

酚酞是酸碱化学中的关键试剂。

using phenolphthalein, we can visually observe the endpoint.

通过使用酚酞,我们可以直观地观察到终点。

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