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| ρ, / | ω % | V, | V, | , / | V-, | V , | V , | , / | ω, % |
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1. . 48-49; 2. . 94-96; 4. . 77-93, 98-103, 109-110; 5. . 38-47; 6. . 135-139.
3.
. , - . , , .., , . (, ) . , , .
:
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:
, . .
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50 1,0 . 50 1,0 . . , .
. :
NH3 aq + CH3COOH aq = CH3COONH4 aq, ΔH1 < 0
NaOH aq + HCl aq = NaCl aq + H2O , ΔH2 < 0
KOH aq + HNO3 aq = KNO3 aq + H2O , Δ3 < 0
. 3.
3
| 1 | 2 | 3 | |
| , m, | |||
| , , / | |||
| , V, | |||
| , t., | |||
| , t., | |||
| , t1=0,5(t.+t.), | |||
| , t2, | |||
| , m2 = 2Vρ, | |||
| , ∆., / |
1 () :
;
Δ t = t2 t1
C : , , :
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= Σi·mi, = 1·m1 + C2·m2
() 0,753 /·, () 4,184 /·, ρ 1 /, V ().
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1. , 1 (1, HNO3 ..) (NaOH, KOH ..) , 298 -55,900, 291 -57,363 /.
2. , .
:
1. Δ :
MgO k + 2H+aq = Mg2+aq + H2O , Δ1 = -145,6
2 = +aq + OH-aq ΔHo2 = 57,5 ,
Δ3 :
MgOk + H2O = Mg2+aq + 2OH-aq, ΔHo3
C aq .
2. 2 MgO, -393,5 -601,8 /, Δ : 2Mgk + CO2 = 2MgOk + C
3. :
+ 22 + ½ 2 = 3, , 2 3 -395, -286, -712 /.
:
1. .16-21; 2. . 17-22; 4. . 51-56; 5. . 6-14; 6. . 73-84.
4.
(, , ) . , .
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. .
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. .
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