The concentration of the alkane c20h42 (fw 282.55) in a particular sample of rainwater is 0.40 ppb. assume that the density of rainwater is close to 1.00 g/ml and find the molar concentration of c20h42.

Molar concentration =

Explanation:

Concentration of alkane ( = 0.40 ppb

1 ppb =

Concentration of alkane ( in mg/L

                                              =

Concentration of alkane () is that means is present in 1 L

Density of water = 1.00 g/mL

Molar concentration =

Formula weight = 282.55

Mass of = =

Here, formula mass is equal to molar mass.

Molar concentration =

i think is conclusions.i think so