solubilities
                            --------------------------------
    gas    g/mol    g/L         mg/L       mmol/L       mL/L
    ----- ------  -----     --------     --------     ------
    He     4.020  0.166          1.5         0.37          9
    H2     2.016  0.090          1.5         0.74         17
    N2    28.020  1.165         17.0         0.61         15
    CH4   16.043  0.668         21.0         1.31         31
    CO    28.010  1.165         27.0         0.96         23
    O2    32.000  1.331         40.0         1.25         30
    C2H6  30.070  1.264         53.0         1.76         42
    Ar    39.948  1.661         55.0         1.38         33
    C2H4  28.030  1.260        130.0         4.64        103
    CO2   44.010  1.842       1500.0        34.08        814
    H2S   34.076  1.434       3400.0        99.78       2371
    Cl2   70.906  2.994       6500.0        91.67       2171
    SO2   64.060  2.279      90000.0      1404.93      39491
    NH3   17.031  0.717     480000.0     28183.90     669456

     
gawk '/[0-9]/{ fm=$1; mm=$2; dg=$3; so=$4; printf "    %-5s %6.3f %6.3f %12.1f %12.2f %10.0f\n", fm, mm, dg, so, so/mm, so/dg; }'