I did the migration from 750 to 118. However, this was a web wallet, not a keplr. Can I still access it?
Yes, you can still access it.
Even if you did the migration using the web wallet and not Keplr, your funds are tied to your seed phrase, not the wallet interface. Both coin types 750 and 118 are supported on Persistence Wallet, so nothing is lost.
You can import the same mnemonic or keystore into a wallet that supports coin type 118, such as Keplr or the Persistence web wallet, and your balance should appear.
Guide: Persistence Wallet | Persistence Docs
Web wallet: https://wallet.persistence.one
Hope this helps. Let us know if you have any more questions!