20℃时,将12克NaOH溶解在100克水中,有人说所得溶液的浓度是12%,对吗?应该怎么说?
参考答案:
不对。溶液的质量百分浓度是10.7%。
阅读短文,然后在文后表格内完成内容摘要。
Taohuayuan
It lies in Taoyuan County and is 23 km away from Changde. The temples here were built in the 10th
century. During the reign (统治) of Guangxu (1875-1908) of the Qing Dynasty, a scenic spot (景点)
appeared according to the article "On the Land of Peach (桃) Flowers" written by Tao Yuanming, a famous
writer of the Jin Dynasty. The tour area today is made up of four parts-the Taohua Mountain, the
Taohualing Hill, the Taoyuan Mountain and the Qinren Village.
Changde Poem Wall
Changde Poem Wall is a 3-kilometer-long riverbank alongside the Yuanjiang River, which is engraved
(雕刻) with poems, handwriting and painting and it is listed as the longest wall with engraved arts in
Guinness Record.
结石性胆囊炎临床症状明显者的根本治疗方法应用
A.经皮超声碎石
B.胆囊切除
C.中药治疗
D.溶石治疗
E.抗感染药物长期应用