Second half
Liverpool began on the front foot following the break and after eight minutes of play had earned a two-goal advantage.
The Reds broke quickly after a Wolves attack with Salah holding the ball up to lay a pass to Jones, who then found Robertson on the edge of the box.
The full-back took a touch to settle himself ahead of rifling a shot into the bottom right corner of the net.
It took Liverpool just two minutes to add to the scoreline via Salah.
The forward hammered home at the back post from Robertson’s low ball, though the offside flag initially denied his effort.
Following a check by VAR, the goal was given with Salah deemed to be behind the ball when the cross was struck from the left flank.
Wolves responded by forcing Alisson Becker into his first save of the night, a dipping shot from Jean-Ricner Bellegarde down to his right side.
Ngumoha again proved to be a nuisance for the home defence, twice going close, first working another halt from Johnstone, before hitting the side-netting with a low drive.
In minute 74, Liverpool had their third goal of the evening and with it passage into the next round of the competition.
Jones drove forward to the edge of the area from midfield to place a shot into the bottom corner of the net in impressive fashion.
There was still time for substitute Frimpong to almost get on the scoresheet himself with a drive that was met by the hands of Johnstone during another swift break from Liverpool.
Another substitute in Konate could have scored too from a Gravenberch cross in the search for a fourth, but the ball was just behind the advancing defender in the box.
In the first minute of added time, Hwang pulled a goal back for the home side, latching on to a deep ball forward to lift an effort past Alisson in the last of the meaningful action.