What is the ppm of 4.50mg of ddt in 10kg of seal fat
Please show how
The formula for ppm is
(grams solute/grams solvent)*1E6 = ? ppm.
(g ddt/g seal fat)*1E6 = ppm
(0.00450 g/10,000 g)*1E6 = ?
I cant understand anything
23pk and 44k7
To find the parts per million (ppm) of a substance, you need to know the amount of the substance (in mg) per unit of the mixture (in kg). In this case, the amount of DDT is given as 4.50 mg, and the mixture is 10 kg of seal fat.
To calculate the ppm, you can use the following formula:
ppm = (amount of substance / total mixture weight) * 10^6
Let's plug in the values:
ppm = (4.50 mg / 10 kg) * 10^6
First, let's convert the mixture weight to grams:
10 kg = 10,000 grams
Now, let's calculate the ppm:
ppm = (4.50 mg / 10,000 grams) * 10^6
= (4.50 / 10,000) * 10^6
= 450,000 / 10,000
= 45 ppm
Therefore, the ppm of DDT in 10 kg of seal fat is 45 ppm.