◦
−
(K N O3 (K N O3
H 2 , N 2 , O2 ,Ar,Xe,etc
◦
0 C ◦
K N O3 KClO3 CaCrO4 C a(H O)2 ZnSO4
◦
C
◦
C
◦
C ◦
◦
◦
P b(N O3 )2 , K N O3 O3, K 2 , C r2 O7
◦
K N O3 K N O3 K N O3
K N O3
K N O3
◦
◦
K N O3
K N O3
• • • • • • • •
K N O3
◦ ◦ ◦
2
0)
K N O3 NaCl
◦
K N O3
NaCl
K N O3 NaCl
K N O3 gdesoluto 100gdesolvente 100gdesolvente
s =
2g 8g
×
100 =⇒ s = 25
4g × 100 =⇒ s = 50 8g 6g × 100 =⇒ s = 75 s = 8g 8g × 100 =⇒ s = 100 s = 8g 10g 10g × 100 =⇒ s = 125 s = 8g s =
gdesoluto 100gdesolvente 100gdesolvente
6,0067g 0067g × 100 =⇒ s = 30, 30,0335 20g 20g 6,51087g 51087g × 100 =⇒ s = 32, s = 32,554 20g 20g 7,0129g 0129g × 100 =⇒ s = 35, s = 35,0645 20g 20g 7,1149g 1149g 35,5745 × 100 =⇒ s = 35, s = 20g 20g s =
m papel+crist − m papel = 2,6252g 6252g − 1,735g 735g = 0,8902g 8902g K N O3 m = (
masadeKNO 3 )x100 masadeKNO3 + NaCl + NaCl
2,6252 x100 5,0056g 0056g m = 52 /
m =
◦
◦
P b(N O3)2
◦
◦
Y = 0,8882X 8882X + + 34, 34,755 Y : solubilidad
X : T emperat emperatura ura ◦
Y = 0,8882x 8882x37 + 34, 34,755 y = 6706184
◦
◦
◦
64, 64,7g → 50, 50,9g x → 1000g 1000g 1000g 1000g × 64, 64,7g x = 50, 50,9g x = 1271, 1271,12gsal 12gsal
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