Question

If I dilute 120 mL of a 1.3 M solution until the new concentration is 0.83 M, what is the new volume? Round to the nearest WHOLE NUMBER and DO NOT include units. *
1 point

Answer 1

Answer:

$V_2=188mL$

Explanation:

Hello,

In this case, for dilution processes, the initial moles must be the same to the final moles, therefore, only the volumes and molarities change from the beginning to the end of the dilution:

$M_1V_1=M_2V_2$

In this case, we are asked to compute the new or final volume, so we simply solve for it as shown below:

$V_2=\frac{M_1V_1}{M_2}=\frac{120mL*1.3M}{0.83M}\\ \\V_2=188mL$

Best regards.