Question

Question 5 1 pts Fine wires of magnesium burn readily in oxygen to produce magnesium oxide. 16.1 g of Mg are reacted with 9.65 g of Oz in a sealed reaction vessel. If 21.1g of MgO is collected from the vessel, what is the percentage yield of Mgo? (fill in the number; if you get 50.1% just fill in 50.1) 3 sig figs 2Mg(s) + O2(8) — 2MgO(s) Submit Que No new data to save Last checked at 5:03am 6:04 PM 10/28/2019

Answer 1

mol = max Mg + za Mgo moles of my. 16.19 249/mol = 0.67 1 mol mols of O2 = 9.65 g - 32 9/mol - 0.302 mol Og i limilis ruegend Holes of Mgo formata 0.302x2 0.603 mol theoretical yield = 0.603 molx 40g/mol - 24.13 g % yield = actuel yield xloo theoreted yiela 21.19 xloo 24.13 87.4