一道ap化学题.50.which of the following represents acceptable laboratory practice?A.adding a weighed quantity of solid acid to a titration flask wet with distilled water.B.using 10 ml of standard strength phenolphthalein indicator solution for ti
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一道ap化学题.50.which of the following represents acceptable laboratory practice?A.adding a weighed quantity of solid acid to a titration flask wet with distilled water.B.using 10 ml of standard strength phenolphthalein indicator solution for ti
一道ap化学题.
50.which of the following represents acceptable laboratory practice?
A.adding a weighed quantity of solid acid to a titration flask wet with distilled water.
B.using 10 ml of standard strength phenolphthalein indicator solution for titration of 25 ml of acid solution.
一道ap化学题.50.which of the following represents acceptable laboratory practice?A.adding a weighed quantity of solid acid to a titration flask wet with distilled water.B.using 10 ml of standard strength phenolphthalein indicator solution for ti
50,下列哪个选项符合实验室操作规则?
A.把已称重的固体酸加到用蒸馏水润湿过的滴定瓶中
B.用10ml标准强度酚酞指示剂溶液滴定25ml的酸溶液
个人觉得应该是A，因为B的话应该是base而不是acid吧