9 
= y — 41 
5 s— 4r 2 Ad 
MY =s—A4Ar; Yy == ) o E 
De (2) 
ES > ") To 
— AÑ — YU == AÑ HS EA 
% ) Y 2 2 
De (1) 
p Y 3Y 
ua = 2r — 2y = 21 oo 
y la reacción es : 
40a,P, +-15H,0 == 6PH, 7. Ca0,H, + Ca(H,PO,), - (111) 
r.Ca,P, +s5.H,0=4u.PH, + w.P,H, + +.Ca0,H, (1V)(R.S.) 
1) 
) 
) 
) 
22 ( 
A 2r=u-- 4w (2 
2s = 34 + 2w —- 2w (3 
== 200 (4 
Elimino en A la u 
6r = 34 + 12w 
2s=34 + 2w + 2x 
2 (3r —s) = 2 (5w — x) (e. r.) 
2 =u +] 4u (1) 
B [ AE IDA (1) 
B' S= 40 (2) 
3r—s=— | 5w (3) 
Elimino en B la s. 
A causa de la ecuación (2) será : 
3r— 2 ==—w- 50; 3r=w | 54 (37) (e. 1.) 
2r =u + 4w 
== A (2 
10 
y 2r=0 ) 
0 o 
3r=xw | 5w (2) 
