.
, ( ) → , . , , , , , ( ).
, - , , m- , V
.
,
, ! , , .
. . , , .. 1 1000 .
, :
13=1000 3 | 1=1000 () |
13 = 1 | 1=1000 () |
13=1.000.0003 | 1=1.000.000 () |
13=10003 | 1=1000 |
1=1000 () | 1=100 |
1 (237 )
, , 40 ?
V1=V2 ( ) m2=40 =400 /3 =800 /3 | .. V1=V2, à àm1= = =20 | |
m1=? |
2 (238 )
500 . 720 ?
VH2O=500 MH2SO4 =720 =1000 /3 =1800 /3 | 0.5=13=0,0013 0,72 | MH20=1000*0,001=1 1 = 1 0,001 3, 0,0004 3, 0,001>0,0004 2,5 , . |
VH2SO4= ? |
3 (242 )
13 , . ?
, . , H2 , 1 1 1 . Cl2 , 17 , 17 17 .
4 (254 )
13 ?
|
|
VAl=13 VPb=13 =2700 /3 =11300 /3 | 13=0,0013 | MAl=2700*0,001=2.7 MPb=11300*0,001=11.3 MPb - MAl = 11.3-2.7=8.6 |
MPb - MAl =? |
5 (255 )
13 ?
V=13 V=13 =2700 /3 =900 /3 | M =2700*1=2700 M =900*1=900 M /M = 2700/900=3 | |
M /M =? |
6 (256 )
59 50 3. .
m=59 V=50c3 | 59/1000=0.059 50/1,000,000=0,00005 3 | |
7 (258 )
461,5 65 3. ?
m=461,5 V=65c3 | 461,5/1000=0,4615 65/1,000,000=0,000065 3 | à |
8 (267 )
, 200 ?
=710/3 V=200 | 200=2003=200/1000=0,23 | |
m-? |
9 (269 )
, 178 355. ? ( )
Mcu=178 MZn=355 | =Cu+Zn=178+355=533 ( ) V=VZn+Vcu=0.02+0.05=0.073 ( ) | |
9 (269 )
5 ?
d=5 | 5/1000=0.005 | ( ): S=S1-S2=0.07*0.2-0.06*0.19= 0.014-0.0114=0.0026 : V=S*d=0.0026*0.005=0,0000133 |