: .
: .
: 25 , 5 , 100 , 50 250 , .
: , , (), .
:
:
n (1/z NaOH) = n (1/z HNO3)
(1/z HNO3) ∙ V (HNO3) = (1/z NaOH) ∙ V (NaOH)
z (NaOH) = _______
z (HNO3) = _______
:
NaOH + HNO3 = NaNO3 + H2O
:
m(NaOH) = (HNO3) ∙ V(HNO3) ∙ M(NaOH) ∙
:
.
, (), _____.
:
(HNO3) = _____/.
, V(NaOH) = _____.
NaOH, V( ) = _____ .
_____ .
:
1. HNO3.
2. ;
3. ( ) , .
4. ( ) .
5. , .
6. 250 .
7. ____ 3 .
8. ____ .
9. ( ), ( ).
.
0,2 , .
:
/ | , V | , | , | |
|
|
, .
:
_________________________________________________________________________________________________ : Δm = |m- m| =
: η = (Δm/m)100% =
( , , . , ):
_____________________________________________________________________________________________________
3. ____.____. 20 ___