1. The problem is to convert 3000 ppm (parts per million) to grams. 2. PPM means parts per million, which is equivalent to milligrams per kilogram or milligrams per liter depending on the context. The formula to convert ppm to grams depends on the total mass or volume. 3. Assuming the total mass is 1 kilogram (1000 grams), 3000 ppm means 3000 parts per million parts of the total mass. 4. Using the formula: $$\text{grams} = \frac{\text{ppm} \times \text{total mass in grams}}{1,000,000}$$ 5. Substitute the values: $$\text{grams} = \frac{3000 \times 1000}{1,000,000}$$ 6. Simplify the fraction: $$\text{grams} = \frac{\cancel{3000} \times \cancel{1000}}{1,000,000} = 3$$ 7. Therefore, 3000 ppm corresponds to 3 grams in 1 kilogram of total mass. This means if you have 1 kilogram of a substance, 3000 ppm of it is equal to 3 grams.