# How would I convert the following to ppm? 3 grams of lead found in 30kg of soil.

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Any guidance is much appreciated!

Any guidance is much appreciated!

##### 2 Answers

Jun 22, 2018

#### Explanation:

And why

And so we gots…

Jun 22, 2018

Like this.....

#### Explanation:

Converting a fraction into parts per million (ppm) works in the same way as converting a fraction into a percentage. The only difference is that you multiply the fraction by 1 million instead of multiplying it by 100.

First, form the fraction by ensuring that you have consistent units. 30 kg is 30 x 1000 g which is 30,000 g.

Now you can do the calculation.

So its 100 ppm.