Question

The allowable concentration level of vinyl chloride, C2H3Cl, in the atmosphere in a chemical plant is 2.0 x 10-6 g/L. a. How many moles of vinyl chloride in each liter does this represent?

Answer 1

Answer:

3.2x10⁻⁸ moles of vinyl chloride per liter

Explanation:

The concentration of C₂H₃Cl is 2.0x10⁻⁶g/L. To find moles per liter we need to convert this mass to moles using molar mass of vinyl chloride:

Molar mass C₂H₃Cl:

2C = 2*12g/mol = 24

3H = 3*1g/mol = 3

Cl = 1*35g/mol = 35

Molar mass = 35g/mol + 3g/mol + 24g/mol = 62g/mol

2.0x10⁻⁶g * (1mol / 62g) =

3.2x10⁻⁸ moles of vinyl chloride per liter