. % w/w
.
% w/v
d
d .
.
.
.
.
.
,
d
d
,
,
.
:
d
,
:
m A+ m B = m
:
.1.
. 2
=m
m
.
/
+m
=m
.
.
,
,
m
,
.
V
.2.
.
:
/
.
/
+V
=V
.
/
.
m
.
/
-m
y
=m
.
.
.
,
,
.
.
:
V
/
.
/
-V
=V
.3.
:
.
/
. .
.
, V , M
V1, M1, V2, M2, ,
.
,
, .T
V
,
,
.
:
M1 V 1+ M 1 V 1= M V .
1
.
2. 3.
g
4.
g
5. 6.
20% w/w
4. 5. 6.
120 Kg
HCl
400ml 0,5 ; 3 3 30% w/w d1=0,892g/cm 16,6% w/v d2=0,93g/cm3.
300g
w/w;
HCl 7% w/v H2O Na2CO3 96% w/w,
g
30% w/w
200g
8.
g 420 Kg
500g
80% w/w;
60% w/w ;
H2SO4 66% w/w H2SO4 98% w/w; 60cm3 NaOH 0,2M ;
11. cm3
12. 13.
( )
HNO3,
H2SO4 0,5 ; NaCl
14.
3,
1L
,
.
40% w/w.
;
20% w/w, 450g
100cm3 H2O. H2O 80cm3
18% w/w
65% w/v 8M;
NaCl
250g
NaOH 0.6M.
120cm3 60 cm3 H2O 6% w/w. % w/v NaOH w/v, NaOH 0,5M NaOH 400cm3
10.
HCl 5% w/v; Na2CO3 8%
250g
400g 6% w/w. cm3 H2O 24% w/w; ; 3Kg NaCl 12% w/w 25% w/w. & 25% w/v 12% w/v . 17% w/v;
7.
9.
MgSO4; d=1,2 g/cm3
HCl 11% w/v d1=1,05g/cm3 800cm3 HCl 26,2% w/w d2=1,13g/cm3;
.
3.
24% w/v
;
60g
% w/v
.
3
1. 2.
d=1,25g/cm3.
NaOH, 40% w/w NaOH.
1.
;
d=1,05g/cm3 250cm3
0,4M;
d1=1,1g/cm3 d2=1,3g/cm3, H2SO4 18M
10% w/w. 23% w/w .
.
H2O, .
.
2
g