Answer to Question #168810 in General Chemistry for Pab

Question

In research, it has been found that millions of bottled mineral water contain benzene (C6H6) at molarity levels higher than concentrations considered lethal for rats. A sample of a 250ml mineral has a concentrations of 0.000151 M. What is the mass of benzene in the sample?

Answer 1

V=250ml

C=0.000151M

Molar mass of benzene= 78g/mol

Mole= mass/molar mass = C xV

Mass= C x V x molar mass

= 0.00015 x250/1000 x78

Mass= 0.0029g