Question

Ella threw 5 grams of salt into 20 grams of water. She made ___ grams of ___% salt solution. (Include explanation for the points!)

Answer 1

25 grams of 20% salt solution

Explanation:

So first you add 20 + 5 because Ella threw 5 grams of salt with the 20 grams which adds them together to get the total grams which is 25. Now you have the part and the whole. Now since you have the 25 and the 5 so all you do now is 5/25 as a percent which is then equal to 20%.

Answer 2

When we make a solution, the solute doesn't go away. All the solute we use stays in the solution it only dissolve in the solution.

The total mass of solution is always equal to the mass of solvent added to the mass of solute.

Therefore 5gram + 20 gram = 25 gram of solution.

5/25×100= 20%