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

(151) He has taught (you mankind) the Qur'an (by His mercy).

(152) On the Day when the hypocrites - men and women - will say to the believers: "Wait for us! Let us get something from your light!" It will be said: "Go back to your rear! Then seek a light!" So a wall will be put up between them, with a gate therein. Inside it will be mercy, and outside it will be torment."

(153) Then, We sent after them Our Messengers, and We sent 'Îsa (Jesus) - son of Maryam (Mary), and gave him the Injeel (Gospel). And We ordained in the hearts of those who followed him compassion and mercy. But the monasticism which they invented for themselves, We did not prescribe for them, but (they sought it) only to please Allah therewith, but they did not observe it with the right observance. So We gave those among them who believed their (due) reward; but many of them are Fasiqun (rebellious, disobedient to Allah).

(154) O you who believe [in Musa (Moses) (i.e. Jews) and 'Îsa (Jesus) (i.e. Christians)]! Fear Allah, and believe in His Messenger (Muhammad صلى الله عليه وسلم), He will give you a double portion of His mercy, and He will give you a light by which you shall walk (straight). And He will forgive you. And Allah is Oft-Forgiving, Most Merciful.

(155) O you who believe! When you are told to make room in the assemblies, (spread out and) make room. Allah will give you (ample) room (from His mercy). And when you are told to rise up [for prayers, or Jihad (holy fighting in Allah's cause), or for any other good deed], rise up. Allah will exalt in degree those of you who believe, and those who have been granted knowledge. And Allah is Well-Acquainted with what you do.

(156) Say (O Muhammad صلى الله عليه وسلم): "Tell me! If Allah destroys me, and those with me, or He bestows His mercy on us - who can save the disbelievers from a painful torment?"

(157) Verily, your Lord knows that you do stand (to pray at night) a little less than two thirds of the night, or half the night, or a third of the night, and also a party of those with you. And Allah measures the night and the day. He knows that you are unable to pray the whole night, so He has turned to you (in mercy). So, recite you of the Qur'an as much as may be easy for you. He knows that there will be some among you sick, others travelling through the land, seeking of Allah's Bounty, yet others fighting in Allah's Cause. So recite as much of the Qur'an as may be easy (for you), and perform As-Salat (Iqamat-as-Salat ) and give Zakat, and lend to Allah a goodly loan. And whatever good you send before you for yourselves (i.e. Nawafil non-obligatory acts of worship: prayers, charity, fasting, Hajj and 'Umrah), you will certainly find it with Allah, better and greater in reward. And seek Forgiveness of Allah. Verily, Allah is Oft-Forgiving, Most-Merciful .

(158) He will admit to His mercy whom He wills and as for the Zalimun - (polytheists, wrong-doers) He has prepared a painful torment.