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Concentration in soil: if a 100-g sample of soil contains 10-5 g of toxaphene, what are the toxaphene soil concentrations reported in units of ppb?

Sagot :

Toxaphene is a kind of pesticides used to protect crops specially cotton crops.

It is present in both solid and gas form.

It has a piney odor.

The physical appearance of toxaphene is yellow in colour amber waxy form.

It is an organochloride insecticide.

In 1940 it was manufactured.

It is a different composition of 670 chemicals.

According to questions,

Given,

Mass of toxaphene = 10^-5 gm

Mass of soil = 100 gm

Toxaphene soil concentrations = 10^-5 / 100 = 10^-7 gm/gm

1 gm/gm = 109 ppb

Concentration in units of ppb =10^-7 * 109 ppb = 100 ppb

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