h2+cuo高温=cu+h2o,用h2制cu,现制取128g铜粉,在标况下h2多少升?
问题描述:
h2+cuo高温=cu+h2o,用h2制cu,现制取128g铜粉,在标况下h2多少升?
到副产物水多少克
答
设需要氢气的质量为x.H2 + CuO =高温= Cu + H2O2---------------------64x --------------------128 g解得x = 4 g所以氢气的物质的量4 g / 2(g/mol) = 2 mol氢气的体积为:4 / 2 * 22.4 = 44.8L...