空瓶中48g,装满气体A后的质量为48.27g,装满同温同压下氢气是,重量为48.018g(空瓶原为真空)此气体A的式量为( ) A 28 B 29 C 30 D 48有下列物质:①0.5molPH3 ② 标准状况下22.4LNe ③ 4℃时9ml水 ④0.2mo
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![空瓶中48g,装满气体A后的质量为48.27g,装满同温同压下氢气是,重量为48.018g(空瓶原为真空)此气体A的式量为( ) A 28 B 29 C 30 D 48有下列物质:①0.5molPH3 ② 标准状况下22.4LNe ③ 4℃时9ml水 ④0.2mo](/uploads/image/z/2259581-5-1.jpg?t=%E7%A9%BA%E7%93%B6%E4%B8%AD48g%2C%E8%A3%85%E6%BB%A1%E6%B0%94%E4%BD%93A%E5%90%8E%E7%9A%84%E8%B4%A8%E9%87%8F%E4%B8%BA48.27g%2C%E8%A3%85%E6%BB%A1%E5%90%8C%E6%B8%A9%E5%90%8C%E5%8E%8B%E4%B8%8B%E6%B0%A2%E6%B0%94%E6%98%AF%2C%E9%87%8D%E9%87%8F%E4%B8%BA48.018g%28%E7%A9%BA%E7%93%B6%E5%8E%9F%E4%B8%BA%E7%9C%9F%E7%A9%BA%EF%BC%89%E6%AD%A4%E6%B0%94%E4%BD%93A%E7%9A%84%E5%BC%8F%E9%87%8F%E4%B8%BA%EF%BC%88+%EF%BC%89+A+28+B+29+C+30+D+48%E6%9C%89%E4%B8%8B%E5%88%97%E7%89%A9%E8%B4%A8%EF%BC%9A%E2%91%A00.5molPH3+%E2%91%A1+%E6%A0%87%E5%87%86%E7%8A%B6%E5%86%B5%E4%B8%8B22.4LNe+%E2%91%A2+4%E2%84%83%E6%97%B69ml%E6%B0%B4+%E2%91%A30.2mo)
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