1. HInd = 104.
.
1) = lg = -lg104 = 4;
2) : = = 4;
3) : = 1 3 5 ( ).
2. HInd = 107 - = 0, 3, 5, 7, 10, 13, , ?
.
1) = lg = lg107 = 7;
2) : = = 7;
3) : = 1, .. 6 8;
4) , < 6 = 0, 3, 5 ;
5) > 8 , , = 10, 13 , = 7 .
, . 4 :
3. HInd = 9, , ?
) NaCl; | ) = 3; |
) [+] = 1012 /; | ) = 13 |
.
1) : = 9;
2) : = 8 10;
3) :
) NaCl , , = 7,
) pH = lg[H+] = lg1012 = 12,
) = 3,
) = 13;
4) , = 3, 7 -, = 12, 13 .
4. HInd ( = 104, , ). . , ?
.
1) = 4;
2) : = 4;
3) : = 3 5;
4) , > 5, .., , .
5. ? = 104 = 109 ?
.
1) 224∙2H2O, ;
2) :
224 + 2 = K2C2O4 + 22
3) , 224, , , > 7.
4) :
(I) = 4, : = 4,
: = 3 5.
(II) = 9, : = 9,
: = 8 10.
, = 109 , .
6. NH4C1. .
|
|
.
1) NH4C1 < 7, -, . NaOH;
2) :
NH4C1 + = NH3∙2 + 1
3) 1, , NH3∙2, > 7, , > 7, .. .