Answer:
The absorbency will be 0.6 (letter C)
Explanation:
A process that decreases the amount of a solute in a solution is called dilution. Dilutions are made by adding more solvent to the solution (the universal solvent is water).
In this case, we have a 0.5 ml of a solution with a specific concentration that the absorbency is 1.2. We dilute this solution adding 0.5 ml of water (the same amount of our solution or initial volume). Then we have the double (1 mL) of the initial volume (0.5 ml), this means that the concentration will be the half (0.6) of our initial concentration (1.2).
In mathematical terms, we can use the next formula
:
(C1)(V1) = (C2)(V2)
Where:
C1: initial concentration
V1: initial volume
C2: final concentration
V2: final volume
We now that:
C1: 1.2
V1: 0.5 ml
C2: ?
V2: 1 ml
Using the formula, we have:
(1.2)(0.5 ml)=(C2)(1 ml)
As the 1 ml is multiplying, pass to the other side dividing
C2= (1.2)(0.5 ml) /(1 ml)
C2= 0.6 /1
C2 : 0.6
