  This paper studies a class of impulsive neutral stochastic partial
differential equations in real Hilbert spaces. The main goal here is to
consider the Trotter-Kato approximations of mild solutions of such equations in
the $p$th-mean ($p\geq2$). As an application, a classical limit theorem on the
dependence of such equations on a parameter is obtained. The novelty of this
paper is that the combination of this approximating system and such equations
has not been considered before.
