Answer to Question #144812 in General Chemistry for George

Question

Question 1: Express 4874 ppm as a %W/W concentration.
Question 2: Convert 0.548 ppm to ppb.

Answer 1

4874 ppm as a %W/W concentration:

1 ppm = 1 mg / L

For diluted solution 1 ppm = 1 mg / kg = 1 mg / 1000 g

4874 ppm = 4874 mg / 1000 g = 4.874 g / 1000 g = 0.004874 or 0.4874 %.

Convert 0.548 ppm to ppb.

x_ppb = x_ppm x 1000

0.548 ppm = 548 ppb