I too agree that it is best to refer her to this site, or to tell her you will pass along things as you yourself are learning. The most improtant thing that ANY catholic apologist should know is how to say - I don’t know, but I’ll find out.
In reference to the Bible canon, here is a list of councils, ALL before the protestant reformation, that approved the canon that we catholics hold today.
**Council of Rome (382) **
Local church council under the authority of Pope Damasus, (366-384) gave a complete list of canonical books of the OT and NT which is identical with the list later approved by the Council of Trent.
**Council of Hippo (393) **
Local North African Church council in union with and under the authority of the Bishop of Rome approved a list of OT and NT canon (same as later approved by the Council of Trent)
**Council of Carthage (397) **
Local North African Church council in union with and under the authority of the Bishop of Rome approved a list of OT and NT canon (same as later approved by the Council of Trent)
**Pope Innocent I, Bishop of Rome, 401-417 (405) **
Responded to a request by Exuperius, Bishop of Toulouse, with a list of canonical books of Scripture; this list was the same as later approved by the Council of Trent.
**Council of Carthage (419) **
Local North African Church council in union with and under the authority of the Bishop of Rome approved a list of OT and NT canon (same as later approved by the Council of Trent)
The Council of Nicea (787)
The Council of Nicea II in 787 ratified the same canon as authoritative for the Eastern Churches.
**Council of Florence, an ecumenical council (1441) **
Complete list of OT and NT canon was drawn up; this list later adopted by the Fathers of the Council of Trent
I believe that there may have been a couple more that I missed.
The point of this is that, multiple times the one church (though divided east and west) under the protection of the Holy Spirit, approved the SAME canon - in council. At the time of the reformation it was one man who removed the books. Although even HE did not entirely remove them from his first bible translation, he only put them in a seperate section.
As to the question of purgatory, this is a little easier to understand with the catholic canon because praying for the dead is mentioned in 2 Maccabees 12:44-46
But St Paul also mentions this:
I Corinthians 3:10-15 According to the grace of God which is given unto me, as a wise masterbuilder, I have laid the foundation, and another buildeth thereon. But let every man take heed how he buildeth therupon. For other foundation can no man lay than that is laid, which is Jesus Christ. Now if any man build upon this foundation gold, silver, precious stones, wood, hay, stubble; Every man’s work shall be made manifest: for the day shall declare it, because it shall be revealed by fire; and the fire shall try every man’s work of what sort it is. If any man’s work abid which he hath built thereupon, he shall receive a reward. If any man’s work shall be burned, he shall suffer loss: but he himself shall be saved; yet so as by fire.
This speaks of our works being tested as if by fire and those not of the proper sort, it will be burned away. This is the “Purgation”, in other words we will be "purged of our (name removed by moderator)erfections. The “place” where this occurs cannot be heaven or heall since these are final destinations. Instead we refer to this plcase as “purgatory”, the place or the state where the “purgation” occurs.
Finally, This is from the Catachism
HERE
1030 All who die in God’s grace and friendship, but still imperfectly purified, are indeed assured of their eternal salvation; but after death they undergo purification, so as to achieve the holiness necessary to enter the joy of heaven.
1031 The Church gives the name Purgatory to this final purification of the elect, which is entirely different from the punishment of the damned. The Church formulated her doctrine of faith on Purgatory especially at the Councils of Florence and Trent. The tradition of the Church, by reference to certain texts of Scripture, speaks of a cleansing fire:
As for certain lesser faults, we must believe that, before the Final Judgment, there is a purifying fire. He who is truth says that whoever utters blasphemy against the Holy Spirit will be pardoned neither in this age nor in the age to come. From this sentence we understand that certain offenses can be forgiven in this age, but certain others in the age to come.
1032 This teaching is also based on the practice of prayer for the dead, already mentioned in Sacred Scripture: “Therefore [Judas Maccabeus] made atonement for the dead, that they might be delivered from their sin.” From the beginning the Church has honored the memory of the dead and offered prayers in suffrage for them, above all the Eucharistic sacrifice, so that, thus purified, they may attain the beatific vision of God. The Church also commends almsgiving, indulgences, and works of penance undertaken on behalf of the dead:
Let us help and commemorate them. If Job’s sons were purified by their father’s sacrifice, why would we doubt that our offerings for the dead bring them some consolation? Let us not hesitate to help those who have died and to offer our prayers for them.
Hope some of this helps
Peace
James