juvi1514 juvi1514 22-02-2024 Chemistry contestada A sample of milk is found to have arsenic at a concentration of 1.31 µg/l (microgram/liter). What is the concentration in ounces per gallon?a) 3.90 × 10⁻⁷ oz/galb) 1.31 × 10⁻⁶ oz/galc) 4.95 × 10⁻⁶ oz/gald) 1.31 × 10⁻³ oz/gal