how many grams of a solution are present if the solution contains 12.5g of KCL and is 43% by mass?

.43 of X=12.5

X=12.5/.43

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To find out how many grams of the solution are present, we need to determine the total mass of the solution based on the given percentage composition.

Given:
Mass of KCl = 12.5 g
Percentage by mass of KCl in the solution = 43%

We know that the percentage by mass is the mass of the solute (KCl) divided by the mass of the solution, multiplied by 100.

Percentage by mass = (Mass of KCl / Mass of Solution) * 100

Rearranging the formula, we can express the mass of the solution as:

Mass of Solution = Mass of KCl / (Percentage by mass / 100)

Now, let's substitute the given values into the equation:

Mass of Solution = 12.5 g / (43 / 100) = 12.5 g / 0.43

Dividing 12.5 g by 0.43 gives:

Mass of Solution ≈ 29.07 g

Therefore, the solution contains approximately 29.07 grams.