u/Environmental-Match4

Stochiometric calculations are really hard for me as I don't know when to do the mol-mol and mol-g type of conversion. These questions are usually asked in my syllabus and I have a class test next week. How can I counter such questions?

https://preview.redd.it/bkf54qmnfwyg1.png?width=659&format=png&auto=webp&s=42287f72d1503fc58d6d332788d3d19df1974251

This is the worksheet my teacher gave for practice.