# What is the solubility of NH_3 at 10°C?

The concentrated ammonia that you use from a Winchester as an aqueous solution is approx. $15 \cdot m o l \cdot {L}^{-} 1$ with respect to ammonia. This is the stuff that really pen and inks when you use it as a reagent, and is approx. 30% $\text{w/w}$ with respect to ammonia. The density of this solution is approx. $0.88 \cdot g \cdot m {L}^{-} 1$. Ammonia is a very water-like solvent capable of hydrogen bonding, that has considerable water solubility on this account.
You can search the link for actual values but at $10$ ""^@C the solubility of the gas should be greater than that quoted....