If 250 ml of a 0.50 m nacl solution is diluted to 840 ml, what is the molarity of the resulting solution?
a) 0.15 m
b) 6.7 m
c) 0.60 m
d) 1.7 m
e) 0.0025 m

a) 0.15 M

Explanation:

According to the dilution law,

where,

= molarity of stock solution = 0.50 M

= volume of stock solution = 250 ml

= molarity of diluted solution = ?

= volume of diluted solution = 840 ml

Putting in the values, we get:

Therefore, the molarity of the resulting solution is 0.15 M

i believe it is c.) 1575 j.