How many grams of chlorine are needed to make 5.00 X 10^6 g of a solution that is 1.50 ppm chlorine by mass?
The definition of ppm is 1g/10^6 g soln.
(1.5g/10^6 g soln) x 5.00E6 g soln = ? g .
To find out how many grams of chlorine are needed, we need to calculate the mass of the solution that contains 1.50 ppm (parts per million) chlorine.
First, let's define what ppm means. It represents the number of parts of a particular substance in a million parts of the solution. In this case, 1.50 ppm chlorine means that there are 1.50 grams of chlorine in every 1,000,000 grams of the solution.
To calculate the mass of chlorine needed in the 5.00 x 10^6 g solution, we can set up the following equation:
(1.50 grams of chlorine / 1,000,000 grams of solution) = (x grams of chlorine / 5.00 x 10^6 grams of solution)
Cross multiplying, we can solve for x:
x grams of chlorine = (1.50 grams of chlorine * 5.00 x 10^6 grams of solution) / 1,000,000 grams of solution
x grams of chlorine = 7.50 x 10^6 / 1,000,000
x grams of chlorine = 7.50 g
Therefore, 7.50 grams of chlorine are needed to make 5.00 x 10^6 g of a solution that is 1.50 ppm chlorine by mass.