Question

If 450. mL of 6.0 M KBr solution is diluted to 900. mL, the concentration of the KBr solution is _ _M.

Answer 1

To find out the concentration of the KBr solution after dilution, we can use the following formula:

(Initial volume) x (Initial concentration) = (final volume) x (final concentration)
(450 mL) x (6.0 M) = (900 mL) x (final concentration)

Let's solve for the final concentration:

(450 mL) x (6.0 M) = (900 mL) x (final concentration)
2700 M mL = 900 mL x (final concentration)

Now we can divide both sides of the equation by 900 mL:

2700 M mL / 900 mL = final concentration
3.0 M = final concentration

Therefore, the concentration of the KBr solution after dilution is 3.0 M.