Question

. If 250 mL of a 0.50 M NaCl solution is diluted to 840 mL, what is the molarity of the resulting solution?

Answer 1

M= mol/L
0.5M*0.25L= 0.125 moles
0.125 moles/0.840L =0.15M

Answer 2

Step-by-step explanation:

The given data is as follows.

`M_(1)` = 0.50 M,
`V_(1)` = 250 mL

`M_(1)` = ? ,
`V_(1)` = 840 mL

Therefore, calculate the molarity using the relation as follows.

`M_(1) * V_(1)` =
`M_(2) * V_(2)`

0.50 M × 250 mL =
`M_(2)` × 840 mL

`M_(2) = (0.50 M * 250 mL)/(840 mL)`

= 0.148 M

= 0.15 M (approximately)

Thus, we can conclude that the molarity of the resulting solution is 0.15 M.