Question

Prepare 80 mL de solucion al 3% la densidad de la solucion es de 1.42 g/mL

R= 3.41 g sto

Ayuda plizzz

Answer 1

%m/m = m soluto   x  100
             ``````````````
                m solc.

V solc. = 80 mL
3%
d = 1.42 g/mL

1. calcular masa de la solución aplicando la fórmula de d = m/v

m = 1.42 g/mL  x  80 mL

m solc. = 113.6 g

2. calcular masas soluto

m soluto = 3 g/g x 113.6 g
                 `````````````````````
                         100

m soluto = 3.408