Answer to Question #42175 in Chemistry for muneeb

Question

If the concentration of a solution of NaOH is 4g/dm3 ,then what mass of NaOH is contained in 250 cm3 of this solution ? [1 dm3 = 1000 cm3 ]?

Answer 1

Express concentration in g/cm³:
c = 4g/dm³ = 4g/1000 cm³ = 0.004 g/cm³
Find the mass of NaOH:
m = c*V = 250 cm³ * 0.004 g/cm³ = 1g