need help with Environmental Engineering .

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Problem 1

CE 2633 Environmental Engineering Homework #1 Due on 09/08/2014 (8:00 am) submit through blackboard

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Convert the following unit to ppm 5% (w/w) NaOH in water

Problem 2

Convert the following unit to g/m3
15 ppm Dioxin. Soil bulk Density is 1800 kg/m3

Problem 3

The solubility of MTBE is 48 mg MTBE/ g water Convert this solubility to mg/L

Problem 4

A water sample contains 10 ppm NaOH, what is the concentration of NaOH in molar units (mole/L)

Problem 5

NO2 in the air is about 1000 ppmv, assume the temperature is 25 °C, pressure is 1 atm, what is the concentration in units of mg/m3