8 g NaOH is dissolved in 250 ml solution. If solution is diluted to 500 ml then moles of NaOH and molarity of dilute solution would be ?

1 Answer
Feb 11, 2018

The concentration would be halved....

Explanation:

In either scenatio, we gots #"concentration"="moles of solute"/"volume of solution"#

#"concentration"_1=((8.0*g)/(40.0*g*mol^-1))/(250*mLxx10^-3*L*mL^-1)#

#=0.80*mol*L^-1#

#"concentration"_2=((8.0*g)/(40.0*g*mol^-1))/(500*mLxx10^-3*L*mL^-1)#

#=0.40*mol*L^-1#...