Question

A 200. gram sample of a salt solution contains 0.050 grams of NaCl. What is the concentration of the

solution in parts per million (ppm)?

Answer 1

Answer:250 ppm

Step-by-step explanation:

Answer 2

2.5 × 10² ppm

Step-by-step explanation:

Step 1: Given data

• Mass of NaCl: 0.050 g

• Mass of the sample: 200. g

Step 2: Convert 0.050 g to μg

We will use the conversion factor 1 g = 10⁶ μg.

0.050 g × 10⁶ μg/1 g = 5.0 × 10⁴ μg

Step 3: Calculate the concentration of NaCl in ppm

The concentration of NaCl in ppm is equal to the micrograms of NaCl per gram of the sample.

5.0 × 10⁴ μg NaCl/200. g = 2.5 × 10² ppm