A 57.0 mL aliquot of a 0.400 M stock solution must be diluted to 0.100 M. Assuming the volumes are additive, how much water should be added

The amount of water to add is 171 mL

Explanation:

A solution is a homogeneous mixture of two or more substances.

A dilution is a solution with a lower concentration than the one you start from, called the stock solution.

In other words, dilution is the procedure followed to prepare a less concentrated solution from a more concentrated one, and it simply consists of adding more solvent. In other words, in a dilution the amount of solute does not vary, but the volume of the solvent varies: as more solvent is added, the concentration of the solute decreases, since the volume (and weight) of the solution increases.

The formula used in dilution is:

Ci*Vi = Cf*Vf

where

In this case:

So:

0.400 M* 0.057 L= 0.100 M*Vf

Solving for Vf:

Vf=0.228 L

Assuming that the volumes are additive, the final volume is equal to the initial volume plus the amount of water added:

Vf= Vi + Vwater added

Then:

0.228 L= 0.057 L + Vwater added

Solving:

Vwater added= 0.228 L - 0.057 L

Vwater added= 0.171 L= 171 mL

The amount of water to add is 171 mL

helloi think dog cat bunny dog cat bunny dog cat bunny

you did not give any options thus this is the best answer i can give to you with this little information you have given

> they are both natural and not man made

> they can be tracked and predicted by the right tools

-love shrooms