Aniline hydrochloride, [C6H5NH3]Cl, is a weak acid. Its conjugate base is the weak base aniline, C6H5NH2. Ka = 2.40 X 10^-5. Required:
1. Calculate pH at points if 50 mL of 0.100 aniline hydrochloride is titrated with 0.185 M NaOH.
2. Calculate the pH (a)before titration begins (b)at E. P (c) at the midpoint (d) after 20 mL of NaOH (e) after 30 mL of NaOH

Which statements are true concerning mineral formation? check all that apply. the slower the cooling, the larger the crystals. the faster the cooling, the smaller the crystals. crystals formed from magma are smaller than crystals formed from lava. minerals can only form in solutions when the solution is heated deep underground. when a solution cools, elements and compounds leave the solution and crystallize as minerals. minerals formed from hot water solutions can form narrow channels in the surrounding rock.