Question

Help me get to my answer I'm almost there

Answer 1

What volume of concentrated hydrochloric acid (12.0 M HCl) is required to make 2.0 liters of a 3.0 M HCl solution?
A) 5.0 liters
B) 0.24 liters
C) 0.50 liters
D) 6.0 liters

Answer 2

M1 x V1 = M2 x V2

Answer 3

12 x V1 = 3 x 2

Answer 4

12 x V1 = 6

Answer 5

@aaronq @SithsAndGiggles @SolomonZelman @sweetburger

Answer 6

you're pretty much there.

\(\sf a~x~b=c\)

divide both sides by b

\(\sf \dfrac{a~x~\cancel b}{\cancel b}=\dfrac{c}{b}\)

\(\sf a=\dfrac{c}{b}\)

Answer 7

Is B V1? How do I cancel out B?

Answer 8

@aaronq

Answer 9

no, in this case 12 would be b

Answer 10

Is my answer A) 5.0 liters

Answer 11

\(\sf 12~ x ~V_1 = 6\)

\(\sf \dfrac{\cancel{12}~ x ~V_1}{\cancel{12}} =\dfrac{ 6}{12}\)

\(\sf V_1=\dfrac{ 6}{12}\)

Answer 12

the point was to isolate the unknown variable

Answer 13

How is the answer 2?

Answer 14

\(\sf \dfrac{6}{12}=\dfrac{\dfrac{6}{6}}{\dfrac{12}{6}}=\dfrac{1}{2}\)

Answer 15

omg so many fractions so my answer is C) 0.50 liters

Answer 16

lol yes it is