Science bio lab

Question

What is the final concentration of 10mM NaOH if it were diluted at 1:30 mM en terms of mM?

Answer 1

(10 mM NaOH/1 L NaOH) x (1L/30L) = .333mM NaOH

one sig fig answer: .3mM NaOH, or, can be written 3 x 10^-1 mM NaOH