【简答题】氨气极易溶于水,在0℃、1.01×10 5 帕时,测得其饱和溶液的物质的量浓度为18.4mol/L,该溶液的密度为0.9g/cm 3 . (1)氨水饱和溶液的质量分数是______ (2)0℃、1.01×10 5 帕时,1体积水中最多可溶解______体积的氨气?
【单选题】What does “denotation” mean?
A.
Denotation means the dictionary meaning.
B.
Denotation means the overtones of the meaning.
C.
Denotation means something beyond the dictionary meaning.
D.
Denotation consists of cultural, political, and literary meanings.
【判断题】N/B表示该房间住客应在当天中午12点以前退房,但现在还未退房。
【判断题】点火开关打到 I (ON) 档 时,30端子和50端子接通。
【单选题】1 What is denotation of a word?
A.
Denotation is the dictionary definition of a word.
B.
It is basically the literal meaning.
C.
It is the direct or explicit meaning of a word or phrase.
【单选题】What is denotation of a word?definition of a word. explicit meaning of a word or phrase.
A.
Denotation is the dictionary
B.
It is basically the literal meaning.
【单选题】标准状况下VL氨气溶解在1L水中(水的密度近似为1g/ml),所得溶液的密度为ρ g/ml,质量分数为w,物质浓度为c mol/L,则下列关系中不正确的是 [ ]
A.
ρ=(17V+22400)/(22.4+22.4V)