Question

HELP!
A stock solution of 12.5 M HCl is used to make 3.0 L of 1.6 M HCl. Explain (in your own words) in detail how you would make this solution. Show all calculations needed.

Answer 1

hi!

Answer 2

@diamondboy
Hi.

Answer 3

so do you know the dilution formula?
\[M _{1}V _{1}=M _{2}V _{2}\]

Answer 4

on one side you have 12.5M, and the other side is 3L and 1.6M, so solve for the missing volume

Answer 5

M1V1 = M2V2
M1=12.5
M2 = 1.6
V2 = 3L

Answer 6

Therefore
12.5 times l = 1.6 times 3

Answer 7

12.5l = 4.8

Answer 8

Yup! so now I = 4.8/12.5 = answer and you're done!

Answer 9

l = 4.8/12.5

Answer 10

hence ans = 0.384

Answer 11

looks right