Untitled Genially

HOW WE DO A SOLUTION?

What is a solution? A solution is a mixture of 2 or more components that when we mix them, only we can see the solvent, because de solut solves in to the solvent.EX: With Water and Sal: We mix them and after that we can see only the water, (solvent) because the sal (solut) solves in to the water.

NECESSARY OBJECTS:

We need: 100ml of Water with 10 g/l Calcul: 100ml= 0,1 L x/0,1 L= 10 g/LSpatula, volumetric flask, a can and scales. x= 10 g/L · 0,1 L= 0,01 g of salt

First of all, we calculate the weight that we need of salt

FIRST STEP

before that we put the can in the scale, then we press the "TARE BUTTON"

SECOND STEP

When we finish to weiht, we catch the can with salt and we add very little water

THIRD STEP

after that we have to stir the mixture and when we only can see the water, this means that the salt solves in to the water.

FOURTH STEP

and then we add the water and salt that before we mix . Now we mix all and when we only can see water and water we finish, WE HAVE A SOLUTION

After that we put the 100ml of water in the volumetric flask, and when it reaches to 100ml, (in the volumentric flask is marked this) we will stopped to add water. and then we add the water and salt that before we mix

FIFTH STEP

SIXTH STEP