The word(s) "mercy" appears 168 time(s) in 158 verse(s) in Quran in Mohsin Khan translation.

(111) And you (O Muhammad صلى الله عليه وسلم) were not at the side of the Tur (Mount) when We did call: [it is said that Allah called the followers of Muhammad صلى الله عليه وسلم, and they answered His Call, or that Allah called Musa (Moses)]. But (you are sent) as a mercy from your Lord, to give warning to a people to whom no warner had come before you: in order that they may remember or receive admonition. [Tafsir At-Tabari].

(112) It is out of His mercy that He has made for you the night and the day that you may rest therein (i.e. during the night) and that you may seek of His Bounty (i.e. during the day) - and in order that you may be grateful.

(113) And you were not expecting that the Book (this Qur'an) would be sent down to you, but it is a mercy from your Lord. So never be a supporter of the disbelievers.

(114) He punishes whom He wills, and shows mercy to whom He wills; and to Him you will be returned.

(115) And those who disbelieve in the Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.) of Allah and the Meeting with Him, it is they who have no hope of My mercy: and it is they who will have a painful torment.

(116) Is it not sufficient for them that We have sent down to you the Book (the Qur'an) which is recited to them? Verily, herein is mercy and a reminder (or an admonition) for a people who believe .

(117) And among His Signs is this, that He created for you wives from among yourselves, that you may find repose in them, and He has put between you affection and mercy. Verily, in that are indeed signs for a people who reflect.

(118) And when harm touches men, they cry sincerely only to their Lord (Allah), turning to Him in repentance; but when He gives them a taste of His mercy, behold, a party of them associates partners in worship with their Lord.

(119) And when We cause mankind to taste of mercy, they rejoice therein; but when some evil afflicts them because of (evil deeds and sins) that their (own) hands have sent forth, behold, they are in despair!

(120) And among His Signs is this, that He sends the winds as glad tidings, giving you a taste of His mercy (i.e. rain), and that the ships may sail at His Command, and that you may seek of His Bounty, in order that you may be thankful.