Question

Convert 120 mg/m³ SO₂ into ppm at 20°C

Answer 1

Answer:

(µ)⁄^3 =concentration ()×(molecular weight of the gas(⁄))/(standard molar volume of ideal gas ())

⁄^3 =concentration ()×(molecular weight of the gas(⁄))/(standard molar volume of ideal gas ())

The standard molar volume of ideal gas at 1 atm. pressure:

22,414 (dm)3/mol at 0°C

24,465 (dm)3/mol at 25°C