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Johnson, Arden Riley

Ethylene amine is a weak base with $p{K}_b=5\mathrm{.}99$ and the chemical formula $C_2{H}_{5}N.$ What is the $pH$ of a $0\mathrm{.}17M$ solution of the salt $C_2{H}_{5}NHBr?$

$($A$)4\mathrm{.}39$

$($B$)3\mathrm{.}56$

$($C$)18\mathrm{.}4$

$($D$)4\mathrm{.}99$

$($E$)3\mathrm{.}38$