help please!!!

1. State a Eeneral outline for performing stochiometric calculations. (1pt). 5x+2y37+1w The reaction that occurs when iron rusts is shown below: 4Fe(s)+3O2(g)2Fe1O3(s) 2. How many moles of rust can be produced from 3.2mol of iron metal? (2pts) 3. How many moles of oxygen will be consumed by the rusting process in question 2 ? (2pts) 4. What mass of iron metal is needed to form 100.0g of rust? (2pts) 5. How many molecules of oxygen will be needed to react with 50.0g of iron metal? (2pt5) 6. About 60% of the sulfuric acid produced worldwide is used to produce phosphoric acid for fertilizers. The equation for one reaction is shown below. Ca5F(PO4)3(s)+5H2SO4(aq)+10H2O(l)5CaSO42H2O(s)+HF(aq)+3H3PO4(aq) If about 16,000 metric tons of phosphoric acid are produced every year in the United States, how many metric tons of sulfuric acid are required? (3pts)