Question #8edc0

1 Answer
Dec 20, 2016

Answer:

The final concentration is #2.0 M#

Explanation:

To obtain the final molarity, we can use the equation below:
http://kayliefernandez.blogspot.com/2016/01/dilutions.html

According to the information provided, we know the following information:

#M_1# = 10.0 M
#V_1# = 25 mL
#V_2# = 125 mL

Since we don't know #M_2#, the equation has to be rearranged by dividing both sides by #V_2# to get #M_2# by itself:

#M_2 = (M_1 xx V_1)/V_2#

Now, just plug in the known values and solve for the second concentration:

#M_2 = (10.0 M xx 25 cancel"mL")/(125cancel"mL")#

#M_2# = 2.0 M