The solubility of CO2 in water at 25 degrees Celsius and 1 atm is 0.034 M. What is the Henry's law constant (k) with a unit of L atm/mole? (Round the answer to a whole number)
If you want k in L*atm/mol then you want k = p/c = atm/mols/L = L*atm/mol.
p and c are given in the problem Substitute and solve.