YOU SAID:
how much apples are in the jar?
INTO JAPANESE
瓶の中にどれくらいのリンゴが入っていますか?
BACK INTO ENGLISH
How many apples are in the jar?
INTO JAPANESE
瓶には何個のリンゴが入っていますか?
BACK INTO ENGLISH
How many apples are in the jar?
That didn't even make that much sense in English.