1.在0.5mol Na2SO4中含有钠离子的数目是?A.3.01×10的23次方 B.6.02×10的23次方C.0.5 D.12.瓦斯中甲烷与氧气的质量比为1:4时极易爆炸,此时甲烷与氧气的体积比为A.1:4 B.1:2 C.1:1 D.2:13.将30mL0.5mol/L Na
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![1.在0.5mol Na2SO4中含有钠离子的数目是?A.3.01×10的23次方 B.6.02×10的23次方C.0.5 D.12.瓦斯中甲烷与氧气的质量比为1:4时极易爆炸,此时甲烷与氧气的体积比为A.1:4 B.1:2 C.1:1 D.2:13.将30mL0.5mol/L Na](/uploads/image/z/9983680-16-0.jpg?t=1.%E5%9C%A80.5mol+Na2SO4%E4%B8%AD%E5%90%AB%E6%9C%89%E9%92%A0%E7%A6%BB%E5%AD%90%E7%9A%84%E6%95%B0%E7%9B%AE%E6%98%AF%3FA.3.01%C3%9710%E7%9A%8423%E6%AC%A1%E6%96%B9+B.6.02%C3%9710%E7%9A%8423%E6%AC%A1%E6%96%B9C.0.5+D.12.%E7%93%A6%E6%96%AF%E4%B8%AD%E7%94%B2%E7%83%B7%E4%B8%8E%E6%B0%A7%E6%B0%94%E7%9A%84%E8%B4%A8%E9%87%8F%E6%AF%94%E4%B8%BA1%EF%BC%9A4%E6%97%B6%E6%9E%81%E6%98%93%E7%88%86%E7%82%B8%2C%E6%AD%A4%E6%97%B6%E7%94%B2%E7%83%B7%E4%B8%8E%E6%B0%A7%E6%B0%94%E7%9A%84%E4%BD%93%E7%A7%AF%E6%AF%94%E4%B8%BAA.1%EF%BC%9A4+B.1%EF%BC%9A2+C.1%EF%BC%9A1+D.2%EF%BC%9A13.%E5%B0%8630mL0.5mol%2FL+Na)
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