问题:
某黄铁矿中含FeS 2为72%,计算该黄铁矿中硫元素的质量分数是
A.6%
B.38.4%
C.42.6%
D.48%
某黄铁矿中含FeS 2为72%,计算该黄铁矿中硫元素的质量分数是
A.6%
B.38.4%
C.42.6%
D.48%
A.6%
B.38.4%
C.42.6%
D.48%
参考答案: