Question

Does anyone know how to explain "which solution could you prepare by dilution?" it's multiple choice

Answer 1

What do u mean ?

Answer 2

Can u show me the multiple choice ~

Answer 3

400 milliliters of 2.50 molar solution from a 2.00 molar stock solution
600 milliliters of 3.00 molar solution from a 2.50 molar stock solution
700 milliliters of 4.50 molar solution from a 3.00 molar stock solution
900 milliliters of 3.50 molar solution from a 4.50 molar stock solution

Answer 4

A is wrong though

Answer 5

@Photon336

Answer 6

is it the last answer !@Photon336

Answer 7

\[N _{a}V _{a} = N _{b}V _{b}\] I think we would have to use this formula

Answer 8

So should I go with D?

Answer 9

@Gemini_babe17 let me check

Answer 10

@rvc hey, can you help with this question?

Answer 11

@Gemini_babe17 sorry but i'm not sure @nincompoop help?

Answer 12

Ok

Answer 13

@taramgrant0543664 do you know the answer to this question like how to do it? I have no idea

Answer 14

Well n=cv
Where n is the number of moles
c is concentration
v is volume

In this case the the moles will be the same so you could do
c1v1=c2v2
Where the ones with 1 is the stock solution and the ones with 2s are the solution you are making
But in this question we don't really need it because if you are making a solution from a stock your stock solution will have a higher concentration
So in A the stock solution is 2.0M you can't make your solution 2.5M
So D is the only one that would work since the stock solution is 4.5M diluting to a 3.5M solution

Answer 15

@taramgrant0543664 nicely done