Composicion porcentual cloruro de calcio CaCl2?
Composicion porcentual cloruro de calcio CaCl2.
Composicion porcentual cloruro de calcio CaCl2.
En resumen
1. calcular Mm CaCl2 Ca : 1 x 40 = 40 g / mol Cl : 2 x 35. 45 = 70. 9 g / mol ```````````````````````````````````` Mm = 110. 9 g / mol 2. Calcular el % de cada elemento Calcio 110. 9 g - - - - 100 % 40 g - - - - x x = 36. 06 %Ca Cloro 110. 9 g - - - 100 % 70.
1. calcular Mm CaCl2
Ca : 1 x 40 = 40 g / mol
Cl : 2 x 35.
45 = 70.
9 g / mol
```````````````````````````````````` Mm = 110.
9 g / mol
2.
Calcular el % de cada elemento
Calcio
110.
9 g - - - - 100 % 40 g - - - - x
x = 36.
06 %Ca
Cloro
110.
9 g - - - 100 % 70.
9 g - - - x
x = 63.
93 % Cl.
La respuesta es la d) cloruro de sodio.
H : 1 x 1 g = 1g / mol Cl : 1 x 35, 45 g = 35, 45 g / mol O : 1 x 16 g = 16 g / mol Mm HClO = 52, 45 g / mol H : 52, 45 g - - - - - 100 % 1 g - - - - - - - x X = 1, 906 % Cl : 52, 45 g - - - - - 100 % 35, 45 g - - - - -…
Composicion porcentual a. - H₂O H : 1 g / mol ×2 = 2 g / mol O : 16 g / mol ×1 = 16 g / mol PM → 18 g / mol H : 2 g / mol× 100 = 11, 11 % H 18 g / mol O : 16 g / mol× 100 = 88, 89 % O 18 g / mol b. - NaOH Na : 23 g /…