What will be the concentration if 40 grams of sugar is added to 100 grams of water?
To determine the concentration of a solution, we need to calculate the amount of solute (in this case, sugar) divided by the total amount of solution (in this case, the sum of sugar and water).
The concentration can be expressed in various units, such as percent by mass or molarity.
Let's calculate the concentration in percent by mass.
Step 1: Calculate the total mass of the solution.
The total mass of the solution is the sum of the mass of sugar and the mass of water.
Total mass = mass of sugar + mass of water
Total mass = 40 grams + 100 grams
Total mass = 140 grams
Step 2: Calculate the concentration (percent by mass).
Concentration (%) = (mass of sugar / total mass of solution) x 100
Concentration (%) = (40 grams / 140 grams) x 100
Concentration (%) = (0.2857) x 100
Concentration (%) = 28.57%
Therefore, the concentration of the solution, when 40 grams of sugar is added to 100 grams of water, is 28.57% (percent by mass).