How many compounds are there in 600.0g of PbSO4? Please Explain.

Answer 1

There is only ONE compound in 600.0 g of PbSO₄, and that compound is PbSO₄ (lead sulfate). It doesn't matter how many grams you have, you still have only ONE compound (assuming it is pure). Now, if the question is asking how many molecules there are in 600.0 g of PbSO4, that's a different story, and you can use Avogadro's number to find that answer.