They're quite similar: to misplace something means to have put it in the wrong place and momentarily not know where it is. To lose something is more finite. For example: I misplaced my keys. (Don't know where they are but I probably will find them.)

Does misplaced mean lost?

verb (used with object), mis·placed, mis·plac·ing. to put in a wrong place. to put in a place afterward forgotten; lose; mislay.

What is the difference between lost and misplaced?

Mislaid property refers to items that were intentionally left in a place by the owner but are accidentally left behind. ... Lost property, on the other hand, is that which was unintentionally lost by an owner.