## anonymous one year ago Quick Chemistry question, please show work :) 3. If 25.0 mL of a 4.525 M solution of HCl was poured into 112.0 mL of distilled water, the concentration of the resulting solution is _________ M.

1. Photon336

Do you know what molarity is?

2. Rushwr

@Photon336 What is the answer u get for this !

3. Australopithecus

Concentration 1*Volume 1 = Concentration 2*Volume 2 Volume 1 = 25.0mL Concentration 1 = 4.525M Volume 1 = 112.0 mL + 25.0mL Concentration 2 = ? use the formula above to solve for concentration 2 Note that you are diluting the solute so your concentration should go down so: Concentration 1 > Concentration 2

4. Photon336

$N _{a}V _{a} = N _{b}V _{b}$

5. Photon336

$\frac{ N _{a} V _{a} }{ V _{b} } = N _{b}$ re arrange and solve for Nb your final concentration: @agree with australopithecus $HCl _{aq} + H _{2}O _{l} --> H3O ^{+}(aq) +Cl ^{-}$ $K _{a} HCL >>> 1$ so virtually no acid left.

6. Australopithecus

The pKa of HCl is -3 so it will dissociate 100%

7. Australopithecus

Dissociation doesn't matter though in this question

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