Question

You dissolve 0.26 moles of Co(NO;) in 0.30L of water. The resulting concentration is 0.87.M.For an experiment, you need a concentration of 0.30.M. What volume of water is needed for thisconcentration to result?

Answer 1

According to the explanation given in a previous session, now we have the same type of question but in a different situation, we still can use the same formula and change what we are looking for now, let's set up the Dilution formula again:

M1V1 = M2V2

We have:

M1 = 0.87 M

V1 = 0.30 L

M2 = 0.30 M

V2 = ?

Now we add the values into the formula:

0.87 * 0.30 = 0.30 * V2

0.261 = 0.30V2

V2 = 0.87 L, this will be the new volume