contestada

calculate the concentration of the following solution in mol/dm3 0.1 moles of NaCl in 200 cm3

Respuesta :

1 [tex]cm ^{3} [/tex] = 0.001 [tex]dm ^{3} [/tex]. Therefore 200 [tex]cm ^{3} [/tex] = 0.2 [tex]dm ^{3} [/tex]. Molarity = [tex] \frac{number of moles of NaCl}{volume of the solution} = \frac{0.1}{0.2} = 0.5 mol/dm^{3} [/tex]. Hope this helps.