posted by Ally
Q4.you will be asked to prepare 25.0 mL of a 0.019 M solution of sodium chloride during this experiment....
a.calculate mass of sodium chloride needed to prepare solution.
(0.25L)(0.019M NaCl/L)*(58.5g NaCl/1mole NaCl)=0.278 g NaCl....is that right?
someone just replied it was 2.3 but how do i get that?