Calcula cual es la concentracion de una solucion en moles que se prepara disolviendo 58 gramos de NaCI en agua hasta formar un litro de mi disolucion.
En resumen
Mm NaCl = 58. 45 g / mol 1. Calcular moles n = masa / Mm n = 58 g / 58. 45 g / mol = 0. 99 mol 2. Colcular M = moles / V(L) M = 0. 99 mol / 1 L M = 0. 99 ≈ 1 molar.
Mm NaCl = 58.
45 g / mol
1.
Calcular moles
n = masa / Mm
n = 58 g / 58.
45 g / mol = 0.
99 mol
2.
Colcular M = moles / V(L)
M = 0.
99 mol / 1 L
M = 0.
99 ≈ 1 molar.
.
Mm NaOH = 40 g / mol V = 2. 5 L 1. Calcular moles de NaOH mol = 70 g NaOH x 1 mol NaOH ```````````````` 40 g NaOH mol = 1. 75 2. Calcular M M = mol soluto / V(L) M = 1. 75 mol / 2. 5 L M = 0. 7 molar.