英语版化学题
问题描述：
英语版化学题
A mass of 43.3 tetraphosphorus hexoxide,P4O6 is actually formed when 75.3g of phosphorus,P4,react with 38.7g of oxygen gas,O2 if theoretical yield for this reaction is 88.7g of tetraphosphorus hexoxide,what is the percent yield for the reaction?
A 84.9% B 51.4% C 48.8% D43.6%
答
C
43.3/88.7= 48.8%