CKRHOC    CKRHOC    CKRHOC    CKRHOC    CKRHOC    CKRHOC    CKRHOC    
          **********************************************
                    **************************
                              ******

SUBROUTINE CKRHOC (P, T, C, ICKWRK, RCKWRK, RHO)
Returns the mass density of the gas mixture given pressure,
temperature(s) and molar concentrations.

INPUT
P         - Real scalar, pressure.
               cgs units, dynes/cm**2
T(*)      - Real array, temperature(s); dimension is determined by
            the application program to be the total number of
            species temperatures, nominally 1.
               cgs units, K
C(*)      - Real array, concentrations of the species;
            dimension at least KK, the total species count.
               cgs units, mole/cm**3
ICKWRK(*) - Integer workspace array; dimension at least LENICK.
RCKWRK(*) - Real    workspace array; dimension at least LENRCK.

OUTPUT
RHO       - Real scalar, mass density.
               cgs units, gm/cm**3