Question

A 146 mg sample of Red 40 dye was dissolved and diluted to a final volume of 2.00 L with deionized water. What is the concentration of the Red 40 dye solution in ppm? parts per milliion (ppm) refers to 1 mg of solute in 1.0 L of solution; (mg/L)

Answer 1

`\large \boxed{\text{73.0 ppm}}`

Step-by-step explanation:

`\text{Concentration} = \frac{\text{146 mg}}{\text{2.00 L}} = \text{73.0 mg/L} = \textbf{ 73.0 ppm}\\\text{The concentration of Red 40 is $\large \boxed{\textbf{73.0 ppm}}$}`