Formas de expresar concentraciones en unidades quimicas ?
Formas de expresar concentraciones en unidades quimicas !
Formas de expresar concentraciones en unidades quimicas !
Pregunta de Química · 1 respuesta · mejor respuesta de Amelita10
En resumen
1. molalidad m = moles de soluto `````````````````````` Kg solvente 2. Molaridad M = mol soluto ```````````````` v solución 3. Normalidad N = equivalentes de soluto `````````````````````````````` v solución 4.
1. molalidad
m = moles de soluto `````````````````````` Kg solvente
2.
Molaridad
M = mol soluto ```````````````` v solución
3.
Normalidad
N = equivalentes de soluto `````````````````````````````` v solución
4.
Fracción molar (X)
Xsto = mol soluto ```````````````` mol solución
Xste = mol solvente ``````````````````` mol solución.
1. molalidad m = moles de soluto `````````````````````` Kg solvente 2. Molaridad M = mol soluto ```````````````` v solución 3.
16. m CucCl2 = 12 gm H2O = 98 gV = 100 cm³ a) preparar la m solución = m soluto + m solvente m solc. = 12 g + 98 g = 110 g calcular % m / m = m soluto x 100 `````````````` m solc. %m / m = 12 g x 100 ```````` 110 g %m /…
4) K2Cr2O7 = 39 X2 + 52 X2 + 16 X7 = 294 g / molM = moles / V(L) ; moles = V(L) x M = 0, 070 x 0, 8 = 0, 056 moles = g / MMg = 0, 056 x 294 = 16, 464 g se disuelven hasta 70 mL5) 2L de disolución 2N N = equiv / V(L) ;…