下列物质无限稀释时的摩尔电导率:Y2SO4为272×10-4S·m2·mol-1,H2SO4为860×10-4S·m2·mol-1,则H2SO4的摩尔电导率为()。
下列物质无限稀释时的摩尔电导率:Y2SO4为272×10-4S·m2·mol-1,H2SO4为860×10-4S·m2·mol-1,则H2SO4的摩尔电导率为()。
相关考题:
( 27 )要想在过程 Proc 调用后返回形参 x 和 Y 的变化结果,下列定义语句中正确的是A ) Sub Proc ( x as Integer,y as Integer )B ) Sub Proc ( ByVal x as Integer, y as Integer )C ) Sub Proc ( x as Integer,Byval y as Integer )D ) Sub Proc ( Byval x as Integer, Byval y as Integer )
单击命令按钮时,下列程序的执行结果为( )。 Private Sub Commandl_Click() Dimx As Integer,y As Integer x=12: y=32 CallPCS(x,y) PrintX;y End Sub PubUc Sub PCS(ByValn As Integer,ByValm As Integer) n=nMod 10 m=mMod 10 End SubA.1232B.232C.23D.123
单击命令按钮时,下列程序代码的执行结果为 ______。 Public Sub Procl(n As Integer,ByVal m As Integer) n=n Mod 10 m=m/10 End Sub Private Sub Command1_Click() Dim x As Integer,y As Integer x=12: y=34 Call Procl(x,y) Print x;y End SubA.12 34B.2 34C.2 3D.12 3
(13)单击命令按钮时,下列程度的执行结果是 Private Sub Command1_Click() Dim a As Integer,b As Integer,c As Integer a=2:b=4:c=6 Call S2(a,b) Print"a=";a;"b=";b;"c=";c; End Sub Private Sub S1(x As Integer,y As Integer) Dim c As Integer x=2*x:y=y+2:e=x+y End Sub Sub S2(x As Integer,By Val y As Integer) Dim e As Integer x=2*x:y=y+2:e=x+y End Sub A.a=4 b=6 c=6 B.a=8 b=6 c=6 a=4 b=6 c=6 a=8 b=6 c=6 C.a=4 b=6 c=6 D.a=8 b=6 c=6 a=8 b=6 c=6 a=4 b=6 c=6
以下过程的定义中,( )是错误的。 A、Public Sub Sum(x ; y)B、Public Sub Sum(ByVal x, ByVal y)C、Public Sub Sum(x As Integer,y As Integer)D、Public Sub Sum(x%, y%)
下面各被调用函数首部书写正确的是( )A.void sub(float x;float y);B.void sub(float x,y)C.void sub(float x,float y)D.void sub(float x,float y);
单击命令按钮时,下列的执行结果为 Private Sub Command1_Click() Dim x As Integer,y As Integer x=86:y=29 Call Proc(x,y) Print x;y End Sub Public Sub Proc(n As Integer,ByVal m As Integer) n=n Mod 10 m=m Mod 10 End SubA.12 32B.6 29C.2 3D.12 3
单击命令按钮时,下列程序代码的执行结果为 Public Sub proc1(n As Integer,Byva1 m As Integer) n=n Mod 10 m=m Mod 10 End Sub Private Sub Cmmand1_Click( ) Dim x As Integer,y As lngeger x=12:y=12 Call Proe1(x,y) Print x;y End SubA.12 2B.2 12C.2 2D.12 12
有如下程序: Private Sub Command1_Click() Dim a As Single Dim b As Single a=5:b=4 Call Sub1(a,b) End Sub Sub Sub1(x As Single,y As Single) t=X X=t\Y Y=t Mod y End Sub 在调用运行上述程序后,a和b的值分别为A.0 0B. 1 1C.2 2D.1 2
若有以下变量和函数说明:includecharCh='*';void sub(int x,int y,char ch,double* 若有以下变量和函数说明: #include<iostream.h> charCh='*'; void sub(int x,int y,char ch,double*Z) { switch(ch) { case'+':*Z=x+y;break; case'-':*Z=x-y;break: case'*':*Z=x*y;break; case'/':*z=x/y;break: } } 以下合法的函数调用语句是( )。A.sub(10,20,Ch,y);B.sub(1.2+3,2*2,'+',Z);C.sub(sub(1,2,'+',y),sub(3,4'+',x),'-',y);D.sub(a,b,x,ch);
有如下程序: Private Sub Commandl_Click() Dim a As Single Dim b As Single a=2:b=4 Call CS(a,b)End Sub Sub CS(x As Single,y As Single) t=X x=t\y y=t Mod y End Sub 程序运行后,单击命令按钮,a和b的值分别为A.0 0B.1 1C.0 2D.1 2
有如下程序。 Private Sub Commandl_Click() Dim a As Single Dim b As Single a=5:b=4 Call Sub1 ( a,B)End Sub Sub Subl(x As Single, y As Single) t=x x=t\y y = t Mod y End Sub 在调用运行上述程序后,a和b的值分别为A.0 0B.1 1C.2D.1 2
单击命令按钮时,下列程序代码的执行结果为 Public Sub Procl(n As Integer,ByVal m As integer) n=n Mod 10 m=m\10 End sub Private Sub Commandl_Click() Dim x AS Integer,y AS Integer x=12:y=24 Call Procl(x,y) Print x;y End subA.12 24B.2 24C.2 3D.12 2
单击命令按钮时,下列程序的执行结果为 Private Sub Command1_Click( ) Dim x As Integer,y As Integer x=12:y=32 Call Proc(x,y) Print x;y End Sub Public Sub Proc(n As Integer,ByVal m As Integer) n=n Mod 10 m=m Mod 10 End SubA.12 32B.2 32C.2 3D.12 3
请选出以下程序的输出结果 ______。include sub(x, y, z)int x, y,*z;{*z=y-x:}main() 请选出以下程序的输出结果 ______。#include <stdio. h>sub(x, y, z)int x, y,*z;{*z=y-x:}main(){ int a, b, c; sub 10,5,a);sub(7,a,b);sub(a, b, c); printf("%d,% d,/%d\n", a, b, c);}A.5,2,3B.-5,-12,-7C.-5,-12,-17D.5,-2,-7
运行下列程序:Dim x, yPrivate Sub Form_Click( )x = 1: y = 1: z = 1fun1 (1)Print x; y; zEnd SubPrivate Sub fun1(a)x = a + x: y = a + x: z = a + yEnd Sub单击窗体后,则输出结果是( )。A.1 1 1B.2 3 1C.2 3 4D.2 2 1
单击命名按钮时,下列程序代码的执行结果为 Public Sub procl ( n As Integer, Byval m As Integer) n=n Mod 10 m=m Mod 10 End Sub Private Sub Cmmand1 Click() Dim x As Integer, y As Integer x=12:y=12 Call Procl (x, y) Print x;y End SubA.12 2B.2 12C.2 2D.12 12
以下定义的过程()是按“传值”方式传递参数的。A、Public Sub Sum(x,y)B、Public Sub Sum(ByVal x, ByVal y)C、Public Sub Sum(x As Integer,y As Integer)D、Public Sub Sum(x%, y%)
下列定义abc过程的语句,正确的是()A、Dim Sub abc(x,y)B、Public abc(x,y)C、Private Sub abc(x,y)As IntegerD、Sub abc(x,y)
在18℃时,已知Ba(OH)2、BaCl2和NH4Cl溶液无限稀释时的摩尔电导率分别为0.04576、0.02406和0.01298 S.m2.mol-1,试计算该温度时NH4OH溶液的无限稀释时的摩尔电导λm∞=()S.m2.mol-1。
Ca2+和Cl-的无限稀释摩尔电导率分别为λ∞m,Ca2+=1.190×10-3S·m2·mol-1和λ∞m,Cl-=7.634×10-3S·m2·mol-1,则CaCl2的无限稀释摩尔电导率λ∞m,CaCl2=()S·m2·mol-1。
问答题简述无限稀释的离子摩尔电导率的含义,如何计算?