def waterSolubility(T, wSP):
    """
    waterSolubility(T, wSP)

    waterSolubility (ppm by wt) = 10**(A + B/T + C/T^2)
    
    Parameters
      T, temperature in Kelvin
      wSP, A=wSP[0], B=wSP[1], C=wSP[2]
      A, B, and C are regression coefficients  

    Returns
      water solubility in ppm by weight at T
    """
    return 10**(wSP[0] + wSP[1]/T + wSP[2]/T**2)