Question

Calcular la normalidad de 2gr. De CaCL2 en 100ml. De solución

Answer 1

Mm CaCl2 = 110,98 g/mol

1. convertir mL a L

L = 100 / 1000 = 0.1 L

2. calcular Peq. = Mm / valencia

Peq. = 110.98 g/mol / 2

Peq. = 55.49 g/eq.

3. calcular nº eq. = m/Peq.

nº eq. = 2 g / 55.49 g/eq.

nº eq. = 0.036

4. calcula N = nº eq. / V(L)

N = 0.036 eq. / 0.10 L

N = 0.36 normal