I am getting ready to apply store bought Aqua Fortis to the stock of the Kibler kit gun I am doing. Never done this before. The directions on the bottle say to neutralize the Aqua Fortis with Sodium Bicarbonate (Baking Soda) solution, but it does not give any indication of how many parts of the Baking Soda I should dissolve in how much water. Is it that obvious relative to how much Sodium Bicarb should be used per quart of water that they don't feel a need to let a green horn like me know? I would really appreciate a vector to the proper mixing of Baking Soda to water to get an effective neutralizing agent.