Question

Hello i need help understanding an equation , i have the answer but not understanding how it was written
If I have 340 mL of a 0.5 M NaBr solution, what will the concentration be if I add 560 mL
more water to it?

(340 ml)(0.5 M) = (900 ml)(Mf); Mf
= 0.2 M

Answer 1

M=molarity, V=volume

\(\sf \huge M_iV_i=M_fV_f\)

\(\sf \huge (340 mL)(0.5 M) = (340mL+560mL)M_f\)

\(\sf \huge M_f=\dfrac{ (340 mL)(0.5 M)}{(340mL+560mL)}\)

Answer 2

Thank you! Am i able to ask for more help afterwards?

Answer 3

yeah lol of course

Answer 4

Oh! Great thanks!

Answer 5

no problem ~

Answer 6

I will close this one so i can pass more medals

Answer 7

lol

Answer 8

lol ok

Answer 9

it looks more readable in latex :) good job