Could someone please let me know if I have the answer to the following question correct? If my answer is incorrect could you please help me answer this question.

what is the difference between 3M and 9M of sulfuric acid?

I think the difference is that there are 3 moles of sulfuric acid in 3M and 9 moles of sulfric acid in 9M thereby making the 9M more concentrated.

Yes, but Mols of H2SO4 in ONE LITER

3 M means 3 mols in a liter
9 M means 9 mols in a Liter

Your understanding of the difference between 3M and 9M of sulfuric acid is partially correct. The "M" in this context stands for molarity, which is a measure of concentration. Molarity refers to the number of moles of solute (in this case, sulfuric acid) dissolved in one liter of solution.

So, in a 3M sulfuric acid solution, there would be 3 moles of sulfuric acid dissolved in one liter of solution. Similarly, in a 9M sulfuric acid solution, there would be 9 moles of sulfuric acid dissolved in one liter of solution. Therefore, your understanding that the 9M solution is more concentrated than the 3M solution is correct.

To determine the difference in concentration between two solutions, you can compare their molarities. In this case, the molarity of the 9M sulfuric acid solution is three times greater than that of the 3M sulfuric acid solution.