does anyone know why we use sulfuric acid to dissolve Hortico to determine the percentage of iron(II) sulfate?

Question

this is for the experiment to analyze hortico, a commercial product containing mainly iron (II) sulfate which is used in gardening and agriculture.

Answer 1

1. to ensure the mixture stays acidic, so that no hydroxide precipitates occur
2. to provide some H+ ions for the KMnO4 with which you are undoubtedly going to do the next part of the experiment - redox titration.